With Xenosaga and Xenoblade crossing over in Project X Zone, does this mean Xenosaga and Xenoblade can crossover in a full game?

There's a chance for everything.

The plot would be more complex than Metal Gear and Kingdom Hearts combined.

Might as well bring in Xenogears too.

And the secret final boss is the Queen Xenomorph. XD

IM not sure what project X zone is, but xenoblade chronicles is awsome, and everything with xenoblade in it is awsome :)

Xeno dating sim? Would play.

A rpg that incorporates elements from both, sure. That's what monolith should do honestly. Xenoblade is great but lacks much of what monolith is known for, if they could make the storytelling like xenoblade, setting like xenosaga, get rid of the AI(or make it more like Star Ocean or Tales), mechas like XCX, space travel and maybe have Intelligent Systems make characters/waifu system, I'd be completely sold. Maybe I'm dreaming too much.

My ideal collaboration would be a Xenogears remake with the missing content between Monolith Soft and Square-Enix for NX or Wii U. I would die if that were announced. Monolith Soft is probably busy with XBC:X sequels though.

Could happen but simply throwing the characters together is always a bad thing.

But making the collab game be a bridge between the series would work.