Bittrex want to update new platform for support professional traders and this may bring lots back trading volumn on Bittrex. This is good move from top exchange and i think altcoin in Bittrex will be push up soon. 
Well, I hope it does, but the platform does not look any professional to me, but looks like an over fried egg. The old layout may have been a bit laggy with some bugs, or look a bit old fashioned, but this one actually looks like a bit off in my opinion. Well, I know they are going to keep improving on it anyway, but I really do not see anything for now that would make me say fantastic with this new design compared to the old one.