Makes sense to unify the belts imo, there's no point with having so many belts now that the Raw/Smackdown brands have been consolidated.
I always though the number of belts was a bit of a joke and largely made the US and IC belts pretty much irrelevant, which is a shame because the IC belt used to a prestigious title held by some of the greats.
IMO ideally they should just have a WC belt, IC belt, and a cruiserweight belt.
WWE don't know how to use Cruiserweights
Best to leave that division in the graveyard. It will only make me angry when they bugger it up as usual