Rebalanced formations

In the FC26 official reveal trailer there is a section near the end where they scroll through a list of different changes, in that list it mentions rebalanced formations. Has anybody seen any news about what this is?

I've looked through the deep dives and can't find a thing about it, of course it may come in the Ultimate Team deep dive due tomorrow, but being that it is basically just a gameplay thing I would have thought it would be there. I'm hoping they have managed to balance the older formations with the currently abused 4-2-1-3 formation.

Obviously there will always be a meta, but most formations feel so lacking in attack and defence support compared to 4-2-1-3. It would be great to see some news about it, but I think this might be something we have to work out for ourselves.