Gwent decks just showed up. Colour me impressed. The decks are huge, about 70 cards each. It seems all the unaligned cards are included in each deck. No more than 3 of each card in a deck. So no dropping 6 blue strip commandos. So Northern Realms shoudn't completely dominate like it does in TW3.
Once you've gotten the spy cards, Blue stripes and Catapults, plus dandelion and the commanders horns, NRs dominate like crazy.