Less standardisation please, it’s meant to be a constructors’ series not a drivers series.
They should relax the engine rules for a bit, let creativity rule, and relax the maximum fuel flow too, but then progressively restrict the total race fuel. Perhaps fuel per race km.
So go light and simple, or heavier with loads of energy recovery, see which is faster, more efficient, which suits which track.
I might even let them run different battery payloads on different tracks.
We’d see different cars relatively better or worse on different tracks, at different points in the race, into, through and out of corners.