The possible Delta fleet in 2 years:

772
350
333
332
764
763ER
763
753
75ER
752
739
738
73N
321
320
319
M90
M88
C300
E190
712
E175
E170
CR9
CR7
E145
CR2

I know I'm missing something not to mention the dozen varieties of 752s.

What we need is the A346. Just to make it that much more awesome.