I see. Well, i believe he died when he was eaten since the zombies only became similar duplicates of him, since he would become a sentient virus i can only imagine he controling the Zombies/Deadpools, which wasn't the case here. I'm open to discuss this with you if you want to.
I'm not sure either way. At the end of the first mini, it looked like all the zombies were one mind (Deadpool's mind). In the next series, they were acting more individually (although there were still talks of a hivemind).
One thing though, while the ending of the first mini-series might imply otherwise, in the next series, it was kind of implied that getting eaten to transform zombies into Deadpools would indeed kill the Deadpool eaten. For example, when the Outcast Deadpool was captured, Liza was talking about how they were going to kill him by feeding him to zombies. Which might imply that the original Deadpool is indeed dead.