I'll be waiting for confirmation from Bay himself.
If it's true, I'm hoping Transformers 5 isn't a reboot - AoE laid the groundwork for a fifth movie, so audiences probably won't like being left hanging by an unresolved storyline. Plus, I personally feel that not only is it far too soon for a reboot, but that reboots are an 'easy way out' for studios.
Yeah, there has been criticism of the plots, but really, I feel that it's misplaced; criticism should really be levelled at the writers, not Bay himself.
+1. His movies are good escapism/entertainment, which is what you'd expect for a movie franchise based on a toy line. Ok, so his movies aren't exactly critically acclaimed, and he seems to be an easy target for haters, but I get the impression that as far as he's concerned, moviegoing audiences are his critics, and audiences like his work.