I'm the Caboose
I am actually the most junior pilot on the list at 289. Another class of 16 starts next week and then expecting 26 in April and 26 in May. They wanted to have more in March, but Airbus couldn't cough up the training slots.
As for IAD, we will probably be adding flights, but no plans as a domicile. Lots of rumors for LGB to be the next base and then lots of expansion out west. I don't see it until late summer at the earliest with expansion being slow and controlled over the next several years. Definitely looking at the longer transcon flights for expansion. Takeoff fees, especially out of JFK, have risen tremendously since 911 and the long haul makes more money. Some rumors about FLL/WPI being a combined base at some future time, but no official plans.
Hope this helps,
Evil Jim