I don't think having Caleb having long hair would suit him anymore. It was great when he was in pixie mode, but looked awful by the time BOTT rolled around when he gained weight/became more buff. The long hair didn't suit him like it suits Nathan for some reason (maybe because Nathan owns it/is more confident? Caleb is rather awkward).
With Matt, on the other hand, I hope he embraces the curls for a little bit. It's been years since his hair's natural state has been seen since his stylist, no doubt, thins his hair out with each haircut. In some of the Bonnaroo pics, he was looking down and his curls were around his face -- he looked very cherub-like. Kind of like when he was a teenager.
Has anyone here noticed how Jared is practically a different person now? I did a double take when I saw the new pictures. He's morphing even more into Caleb than before!