Can consider
1. 70-300vr/70-200afs if u take sports., or just get a 18-135 or 18-200 if you just want more focal lengths.
2. 200mmf4 and a 28mm/2.8ais if u don't mind manual and change lens more often. The 200mm is really cheap and good and light.
Camera gets outdated in months but lenses...