I prefer the new look, it's more scary. However it is confusing. The thing about asexual drones dosn't explain much because none of the voyager crew/ TNG crew in first contact seem to show any suprise to them looking different. Plus Picard looks like the 'Asexual' Drones when he was assimulated. It's a nice try for an explaination but all it is really is that they had a larger budget for first contact.
Did you know that they original planned to make the borg insects (Hive mind) but due to budget made them the way they were