Hope they can also bring over the production values and the photography of BBC's TG.
I understand the show runner also left with them.
Unfortunately, they can't copy the format of TG due to copyright (eg game-show formats are protected copyright subject matter). It's possible they'll come up with something even better, but more likely to be like Titanfall after CoD.
Perhaps they used a lot lf contract staff anyway and won't be a big deal.
Either way, with Andy Wilman in charge and undoubtedly a bigger budget, I would say it will improve, if anything.
That said, I doubt it will be a clone of TG. They probably have had some ideas they have wanted to try, but couldn't because of the BBC and because they wouldn't be 'top gear'.