From what little I've seen, there aren't many significant changes. I think the big difference will be training and cooperation between the teams. But I don't think that's enough to beat Sporting, as they'll be training equally. So I strongly believe the final will be similar to last season's.
In reality, we never really know until it happens, there are many possibilities that could happen there (for the Taça de Portugal). But if you want to see Sporting & Benfica meet again in a cup competition, it won't be long before we see that match. It's a match in the Supertaça Cândido de Oliveira that will take place in the next few days, I hope this time Benfica can deliver a good result, unlike in their previous meetings.