Excellent
This will as well be a very nice example of migration.
You did really a good job for this, you exactly followed the required steps for a migration with this many pages indexed.
As the switch was instant, it should be quite different at the end of the month, the zero dupe will have gotten rid of most of the older URLs (here vanilla ones) and the dupes as well, I know you did a good job with your robots.txt, but you'll reduce the pagination ones, and they are many.
In you case, I don't think you'll see drastic changes in indexing, besides the url updates, but you should experience a boost in SERPS after the migration will end
Bots must be crawling like crazy nuts right now
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