It seems logical though. VZ is close enough to 300kw, and if VE is going to be 100kg heavier than we can expect an increase of around 30kw like how the GT jumped 40kw over the TE50. A 370kw GTS would line up pretty good alongside a 330kw Clubsport. That makes the LS7 an obvious candidate, unless a supercharged LS2 for some reason is more feasible.

I'd be interested to see how the LS2 can take extra weight though. The BOSS is crucified for a lack of low end grunt, and the LS1 was widely crucified for it as well. The LS2 seemed to fix that, but that was VZ.