Nobody is trying to force them together. I’m just predicting it will happen.
They already exist in the same multiverse in D&D canon. In my opinion it’s only a matter of time before they do in MtG canon too.
Well, 40K commander decks. And a LotR set. Both of which fall under the label of “Universes Beyond.” The Forgotten Realms set doesn’t, despite current being called non-canon. My speculation is that they’re not putting it under Universes Beyond because they want to leave the option open to retroactively make it canon at some later date. My prediction is that this set will sell very well, and they will end up making more like it that do include more direct crossover and are considered canon.