I feel like all of the focus has been on NG. I think spy decks will be very viable because it has been in the past and has support but I can't really say the same for the other factions. I can see some really problem boards where NG takes everything you have, the problem I see is that nilfgaardian knight can be worth 9 points for 5 provisions and tortoise 5 for 10 points, it's going to become a game of purify wars or you will just give round 1 hands down because that is way more powerful than anything any other faction can do right now and they have the best thinning, the ability to replay a card, is just too much utility to back it up.
I just bought heavily into the Syndicate expansion, particularly dodging anything to do with fireswarns. Jacquez, while still being an auto include in any fireswarn deck