Everyone already knows there will be a Gen 5. It's just a matter of time.
And because nothing has been announced about Gen 5, there's no point in making a Gen 5 section. The anime still has at LEAST one more season, probably two, before gen 4 is done with. Movie 11 and Platinum need to be released internationally, movie 12 still needs to be made.
so a gen 5 forum is pointless when gen 4 isn't even close to being done.