Neither did kicking touchbacks last year...nothing is going to develop...teams are going to randomly try it until they get burnt once and say F that, it isn't worth it and continue kicking TBs. Just like they did with kicking short at times last year strategically.
The NFL did it to themselves by not either increasing the penalty for TBs or moving the kickoff back so it would be harder to kick TBs. IMO, they don't want kickoffs and did all these changes for the "illusion" that they want to bring them back but they really don't.