We discussed this on A1-Wrestling.com and there are some differing opinions on having Big Dave return. I am all for it. The guy was really killing it when he left WWE and despite the fact that he was a perennial main eventer he will be a fresh face. It is kind of like the often proposed idea of having an off-season or rotating main eventers off TV occasionally. It should work for Batista here just like it would work for Cena, Orton, Punk, etc.
Below is a link to the video that ran on RAW from WWE.com.
"I'm tired of waiting. I'M BACK!"
Upload Credit: WWE_Unleashed14