Is 260 even possible for the JGPF men? I get that, theoretically, it's possible if he did 5 quads but even top senior skaters are pushing it with 5 quads in the FS. Heck, Nathan's only managed 4 in his last two outings.

Ilia did have one error on a jumping pass in his JGP Austria event so he can probably score at least a little higher (maybe 250?).
I suppose the other, unknown, factor is skate order. Is the USFS still using a random draw for Nationals? I know they are for the qualifying series comps but I'm not sure if that's the case with Nats. If Ilia draws last and the crowd is feeling a bit let down with whomever skates 5th, a program where he hits everything could raise his scores enough to pull off an upset.