Overcooked is good, but it isn't AAA.
The rest of the specs all seem feasible, but nothing beyond any of this forum's more constrained guesses.
GPU: 14TF is reasonable when you consider variants of Vega64 can get close to that on an older node. And "some sort of RT" could refer to anything from marketing getting liberal with the term when referring to SSR, to a general push for compute based RT shadows.
Memory: 24GB of GDDR6 on a 384bit bus has pretty much been established as the minimum for requisite bandwidth. 32GB would be lovely, but 24 pretty much seems to be the minimum.
Btw, if there is any truth to those specs, I don't see the point in launching later than 2019.