No, i dont believe so. I wouldn't waste time leveling the same 2 pets to 25, not until i had no other options anyway. I know for the achievement they were all 75 different ones, and the couple after wouldnt have been the same. I dont think any are even similar, apart from the 3 Pandaren Spirits i ha...

Hey, if this has been addressed in another topic i apologize now for posting.
The site is showing i have only 73 pets at max level, i have the 75 pet achievement, and have leveled more to 25 since then. I think i have 76-77 total.