Guys guys guys, don't get hung up on 2.5, I'll bet large sums of money that 3.0 will be needed with an additional pascal cpu before this show is over. Tesla is not going to upgrade crap until they "actually" have it working and know what is required. They may even skip the dual px2 board and jump to xavier by the time they get this thing sorted out.
I would not get hung up on 2.5, this path is nowhere near built yet. I wouldn't be concerned at all, unless we start seeing new models with additional radars, at that point I declare 2.0 is screwed, however as long as they are simply updating / upgrading the APE box, we're all safe, well the ones that prepaid for FSD anyways.