You're going to see a massive shift to foot slogging with the change to glancing vehicles for transports, but you'll see armor 13 vehicles start to be on the rise. I think this will be a fun time for predators and vindicators (not for wolves I think, but for codex marines).
I'm aware that we don't get auto cannons, I was using it as an example. Overall the flamer is a better choice now if you like playing the mid range shooty rapid fire style wolves. I switched to all flamers instead of the meltas I was packing before and have been ripping it up. Sure they can move to the side and shoot, now they're snap shooting their heavy weapons and if they're not heavy, it wasn't really much of a concern anyways unless it's orks as they only get -1 to BS when doing it where marines get -3 (huge difference considering their RoF is superior to ours).
Land speeders being cheap on points with a multimelta is correct, but you still have to get within 12 inches to have it be decent versus 13+ armor and at that distance, you might as well just remove it from the board.
He'd be better off dropping the razor backs from the long fangs as they are massive point sinks now for armor 11 that gets glances out with very common weapons, taking another full squad of them, dropping off the speeders and the wolves (unless you have something to go with them that increases their leadership as I'm not sure where your lord is running),
Like I said, the lists aren't what they use to be. Most lists will be viable for now because people will still be using the same stuff as before. Be different, make the new list now and stomp your friends using the new rules to your advantage by capitalizing on strengths of units that weren't previously as strong.
I will admit though that thunder wolf death stars are still quite funny, even though I don't use them.
Don't forget you can take Blood Angels as an ally. I've already converted death company into the 13th, death company dread, furioso (they both have wolf talons...cooler than blood talons!), baal predator (this tank is silly), and 2 choices for heavies...not sure which one I'll use...basically another squad of devestators (long fangs with 10 point missiles) or an autocannon / bolter pred.
Oh and that thing called cover is only 5+ now, huge change to vehicles as well.