Even given the age of the engine I still much prefer NCAA to Madden. I used to purchase both every year but haven't bought Madden in five years and find it almost unplayable now. NCAA is the better game, they just don't put effort into it.
I'd like if they...
1. Brought back FCS schools.
2. Introduced stadium and facility expansions...maybe through a booster/backer system where your performance impacts donations and ticket sales.
3. Perfect recruiting...Alabama should not be in the top 3 for every recruit in the country year after year after year
4. Tweak a few things...colors, uniforms, stadiums etc
5. Expand on the coaching career track in dynasty, that was a good add on but they need to keep running with it.