Per Joe Bolden's twitter: Link
I don't know exactly what the protocol is for this, it's possible that they are just using last year's helmets for spring practice and will switch it up for fall practice or the season, but for now it looks like they are sticking with the helmets from last year. Personally, I'm impartial about the helmet numbers, but I do for a fact dislike the grey facemask. Thoughts?
Edit: As multiple commenters have pointed out, these are just practice helmets which are identical to those worn the previous year; they are not repainted until the summer. This helmet design has no bearing on the one that will be used by this year's team.