One of the biggest issues your likely to get is that you start having mutually exclusive cosmologies... both in space and on Earth.
By mutually exclusive I mean your including Tenshi Muyo and other cosmologies. Seriously, one of the reasons Tenchi dropped off the fanfiction radar is that you can't argue with the TM holy trinity being the only deities in the setting. Made crossovers very, vey difficult. I'm not sure if that pack of whatever the Jurian equivalent of jyhad actually is are still lurking... but those guys saw genocidial rampage as the laid back setting on this issue. Just fair warning... which may not currently apply.
The major self written point you've entered into the series is that we know why Earth is qarenteened in this universe. Youki... Earth is lousy with things that are nightmare fuel for the universe at large. I forget which of the first 2 series of TM it was in, but one life draining, teleporting youki gets loose on a planet and unless a member of the royal family shows up is basically game over for that world. I'm pretty sure this is how the Jurian Royal Family got royal in the first place. Their sword techniques can actually deal with youki.
Ignoring the sheer number of youki and the like on Earth at any given time, the fact that there are so very, very many methods of offing or containing the things means that not would Earth require a Royal court to contain... but if those practices spread the Jurian Royal Family basically can kiss is power base away on many worlds. As I see Sailor Moon involved (at least a pair of anti-villian morons) this is likely how that Royal Family got into power as well... it would also mean, in setting, that the disaster that causes Crystal Tokyo is actually the removal of all the settings other antiyouma forces by death, organizational dissolution or them moving off world. Turns out the senshi can't handle the numbers themselves. Would also explain the entire thing where Earth is strangely the backwards planet in system... despite being the only naturally life bearing world in system. Basically Earth had all its anti-supernatural forces intact and Beryl set up a teleportation gate system that let them get off world... basically a numbers game.
Then Yosho decided to seal a stupidly scary powerful Ryoko on the planet and they decide to forget Earth existed... explaining the entire lost Colony drivel they never actually prove, but keep warbling on about. Thus Yosho got left alone on the infested planet of doom... and all was good. He got a social life and everything.
By mutually exclusive I mean your including Tenshi Muyo and other cosmologies. Seriously, one of the reasons Tenchi dropped off the fanfiction radar is that you can't argue with the TM holy trinity being the only deities in the setting. Made crossovers very, vey difficult. I'm not sure if that pack of whatever the Jurian equivalent of jyhad actually is are still lurking... but those guys saw genocidial rampage as the laid back setting on this issue. Just fair warning... which may not currently apply.
The major self written point you've entered into the series is that we know why Earth is qarenteened in this universe. Youki... Earth is lousy with things that are nightmare fuel for the universe at large. I forget which of the first 2 series of TM it was in, but one life draining, teleporting youki gets loose on a planet and unless a member of the royal family shows up is basically game over for that world. I'm pretty sure this is how the Jurian Royal Family got royal in the first place. Their sword techniques can actually deal with youki.
Ignoring the sheer number of youki and the like on Earth at any given time, the fact that there are so very, very many methods of offing or containing the things means that not would Earth require a Royal court to contain... but if those practices spread the Jurian Royal Family basically can kiss is power base away on many worlds. As I see Sailor Moon involved (at least a pair of anti-villian morons) this is likely how that Royal Family got into power as well... it would also mean, in setting, that the disaster that causes Crystal Tokyo is actually the removal of all the settings other antiyouma forces by death, organizational dissolution or them moving off world. Turns out the senshi can't handle the numbers themselves. Would also explain the entire thing where Earth is strangely the backwards planet in system... despite being the only naturally life bearing world in system. Basically Earth had all its anti-supernatural forces intact and Beryl set up a teleportation gate system that let them get off world... basically a numbers game.
Then Yosho decided to seal a stupidly scary powerful Ryoko on the planet and they decide to forget Earth existed... explaining the entire lost Colony drivel they never actually prove, but keep warbling on about. Thus Yosho got left alone on the infested planet of doom... and all was good. He got a social life and everything.