The 772 will be launched around 1990-1995, so yes, you can expect it.
The 744 will be somewhat earlier, probably between 1985-1990, so you can also expect that one.
The 763 will be launched a few years before the 744, 1983-1986.
Don't have the exact dates, sorry. But from what I also understood, launch time in AWS is random, not the same as in real life.
But those dates I gave you are fairly accurate. Just wait and see, they will all be launched.