only if they would merge all servers i think. i don't think the game is built to support shared server load etc. it would be cool though, but you'd run into problems with drops f.e. and probably people abusing it since every server has its own 'stage' of where its at. besides it would give a free portal to port items to another server
how can you merge a single server? innova eu and innova ru are two separate branches of the company and the servers have nothing to do with each other.
no matter how you put it, would be possible because servers can always be relocated to be on same machine. however i would only see this possible on instances. (instanced global server , something similar to aion fast-track but this one puts all players from all servers in 1 open server tho) either way wont happen, but would be positive feature if it could.