I really have not been keeping up with anything related to Tower Defense but just from having looked at it for 5-10 minutes it does sound pretty cool actually and the fact that there's supposedly going to be a cross-use of the actual splinterlands cards there too just sounds like it could pick both games up even more.
I know this game is still probably a long way out but I figure I would slowly start accumulating some of these packs given that it will be the first round of packs for this new game through Splinterlands.
It might take a while to turn into anything but I'm using mostly rental income from my cards to buy these so it'll just help me diversify my holdings a bit more and be able to hopefully participate in both games later down the road.