After this season (assuming we play 16 games) and not including the playoffs, Allen will have played in 44 games and started 43. I think that’s a reasonable enough sample size to have a good idea of what we have with him.
He’s had consistent coaching, a top defense backing him up and now has a great receiving unit. If he’s going to establish himself as one of the leagues best QBs then I’d say it has to be now. If not then I say the chances of it ever happening are pretty slim.