To be honest, I wouldn't doubt if this is in next year. This would add tremendous depth for franchise. The only problem I would forsee happening is if you import NCAA draft classes because the game wouldn't know who is a 3-4 OLB or 4-3 OLB for example. Like this year, hand crafted draft classes would be ideal (but change the names and schools to avoid having set draft classes).
And in regards to Madden 06, I dont know why you guys haven't mentioned 07 for the PS2. It had the same progression, but had player roles which added a unique element to franchise. I remember drafting Troy Smith in the 6th round and he had the role of "developmental prospect." He never panned out for me, but it was nice to see which players had roles. I also had a 1st round running back labeled an "underachiever" because he rushed for 2,000 in 4 seasons (3.4 ypc) and went from a 84 to an 76. Fun times.