Checking out the new OU student union is a must for anybody who hasn't been to the campus in 10 years. The Richland corridor had a lot of work done to it with a new bridge over the Hocking River. I don't know how far along the Kennedy Museum of Art was 10 years ago but its free and worth seeing what exhibition is staged and they've put in a little cafe. Uptown might have the most significant amount of changes for you. They've put in a few more upscale restaurants in Salaam (W. Washington St), Zoe (E. State where the Swindlefish was), Sol (Cuban in the alley by behind Pawpurrs) and Stephens (across from the Blue Gator/Greenery). The Pigskin has been expanded, the Junction has been renovated and there is huge new bar at the corner of Carpenter and Court Street called Broney's where and autobody shop was. That last block of court street from Casa Nueva to Carpenter Street has picked up with a few bars to make it more part of the uptown scene. I think most of the development on East State out to the mall is 10 years old but it may be worth a swing out there.