Hmm. Yes, I will think about it. The only reason I will go with FNF TestGround 2, 3, 4, and so on, is that in this way the people will know that I've updated the game and that there are new characters.
I will not make TestGround 2,3,4,5 without a big amount of new characters. For example, if in this Testground are about 10 characters, I will not publish TestGround 2 without let's say 15 or 20 new total characters.