They already have 2 Branches 1. Bittrex US 2. Bittrex International
They are changing the name From Bittrex International to Bittrex Global. Maybe because they thought it's odd to use 'International' when they can use 'Global' which is sound more perfect. Though tokens/coins in Bittrex International is not going to list on Bittrex Global automatically. Coins/tokens have to apply again for approval. Which is the main reason I think people should give attention to? Other than that this is not that serious that's why they're not sending the news out few times in Social media.
If that's the case, then that is a great news and a welcomed development. But it if it's just a change of name as you implied, then tokens and coins shouldn't be affected since it's still same platform but with a new name..