You think Google is going to make a good AAA game? Lol, no, they will rush out an A level game at best. It will have a AAA budget to cover up it's issues and have good looking graphics, just in time for the 2020 launch of the PS5 and next Xbox.
This is very indicative of the issues with Google as a gaming company.
They don't seem to get the business, and this choice of developer pedigree is demonstrative of that. Ass Creed isn't a particularly good IP, and it doesn't hold a candle to what Sony and Nintendo have, let alone Microsoft.