After seeing Radagast I think there's going to be several ways to get around the resource matching restrictions. It doesn't always have to be the heroes that provide the resource tokens.
And thanks to solo play, there'll be plenty of opportunity to try all kinds of things using 'exotic' decks.
Imagine the possibilities...what if there will be a neutral "Alliance" ally, when played provides a resource of maybe Lore and/or Tactics for example. Cards like this not only speed up the game but open up deckbuiling exponentially. Single sphere decks will get boring after a while in my opinion. But being able to efficiently and cheaply build multi-sphere decks, where you can fix shortcomings or enhance strengths of one sphere really adds to the total fun factor. I'd really like to play decks other than a Lore deck or one or two variants of a Tactics deck. If I want that I can continue to play W:I.
Yankees 7 Mets 2 Babylon 5
Red Sox 3 Phillies 6 Deep Space 9