The team periodically meets with Foxboro resident STHs to get feed back from us and to smooze us up for town voting. And they have told us there is no plans to get rid of hard season tickets. Who knows what the future holds but they don't have plans now.
I just use my old lanyard. I hate the idea of using my phone as a ticket. I generally never even look at my phone when going to a game. Imagine having to pull out your phone when it is 12 degrees out, taking off your mittens, searching the app, hoping it works, and then having to pull up three other tickets for your friends. That seems a bit insane to me and I expect it would make the already long lines worse.