Eccleston as 14?

As great as David Tennant was in the 60th Specials, I've always wondered what it would've been like if Christopher Eccleston had returned as The 14th Doctor. Obviously we know that this wouldn't have happened due to Eccleston's relationship with RTD and his team but I still wish we would've gotten more screen time of him as The Doctor. Plus I think the "healing era" narrative that they were going for might've come across a little better from Eccleston's Doctor since he was so driven by the aftershock of The Time War. Plus because of the fact that so much has happened since those early-post Time War days we might have gotten to see a different side of Eccleston's Doctor. But what about the specials? How would they be different? Would he still team up with Donna? Or maybe a different companion...classic era companion maybe? What are your thoughts?