Anyway Ive been keeping an eye out for info, and I actually think we'll deal with the crons pretty well. It sounds to me like shooting and MEQ armies are going to have it very rough, with units like.... lych guard is it(?) that bounce shots back at the opponent or those doom scythes or even the vehicle munching scarabs. Well a S10 AP2 shot doesn't mean jack to a gaunt or 6 and its only one hit on the big bugs. We shouldnt have a lot of anti infantry shooting anyway and god knows we dont have vehicles.
In the meantime our primary skill, combat, remains as viable as ever. Get in to the squads quick and not only will you win combat (Hooray for I2, high strength/poison and sweeping advances!!) but you'll crush just about anything the crons have to offer. Even the tougher units like the c'tan shards or overlords are still going to be devastated by poison, and a liberal serving of Monstrous creature to the face should solve a lot of issues.
Infact I think the only thing that will really change is zoanthropes will become more common/nessecary. I haven't heard much about cron anti psychic stuff, but zoeys will make a mockery of all that quantum shielded armour and should now punch holes in the monolith like a dream. And when the vehicles are dead, a S5 AP3 blast is lovley
I do however think its the end for warriors and raveners. With that new doomsday cannon making another S8+ large blast and tesla weaponry providing enough hits to torrent them down I just don't think they can survive anymore. Raveners may get away better because of the 12" charge but that remains to be seen. I honestly think it might be business as usual for us, but if I do play some games ill be sure to post up the results.