I'm by no means an expert on the institutional space, but this line from the Bitcoin Magazine article was the most useful bit of info for me:

This partnership allows FIS clients to move and store bitcoin and other cryptocurrencies, gain access to self-custodied wallets, a transfer network, and other advanced forms of digital asset management.

I think the gist of it is that more institutions will now have more options for self-custody and crypto transferring/trading.