I just finished episode 46 (or 47) of the original series. Towards the end of the episode it shows Hinata being taken away, but it is never made clear whether she is dead or alive definitively. Naruto dips his fingers in her blood she coughed up, and says something about never losing. At first I thought that meant he was going to avenge her in some sort of way (implying death), but I'm not entirely sure.
This is sort of a two part question:
- Is Hinata alive?
- Will she show up again in the original series, or does she end up coming back in Shippuden?
Keep in mind I've not watched past episode 51-ish, and I'm watching the original series.