Does it just pause the game until its back so you can recovery or do you restart the level? The last couple weeks my nets been kind of ****ty on the reliability side, often dropping for only a minute at a time but very frequently to the point where i cant play normal online games. I'm hoping card hunter doesnt kick you from a game if the net drops, kind of like AoEO doesnt as long as its against AI.
Currently, it boots you to the beginning of your current battle, without counting as a loss. You can then resume the adventure. This can be frustrating (when you have a fight in the bag and then lose connection before you can finish off the last, badly wounded, cardless foe) or a blessing (when you're about to lose a battle). That said, I wouldn't be surprised if this got changed, because it's open to an exploit.
Yep, we've done a lot of infrastructural work to restore a battle that gets dropped but we don't have it working yet. It's definitely on our wish list but unlikely to be done anytime soon I'm afraid.