I guess it all depends on how they will restructure the rewards. There need to be enough incentives to stay in 'your own' league. If season rewards/DEC earnings/DQ rewards are exponentially better in a higher league, it will make it more interesting to go there anyway. Get enough of your accounts in that same league, and they will eventually be matched with each other, and you can get wins 🤷♀
I really like how jacekw put it in his reply to my comment on his post:
1lvl deck with some gold foils (epics / legendaries) is not Silver/Gold level deck. It is still a 1lvl deck (...)