What would be the point of creating new species? Sow more division and war and violence. I just dont see it turning out well. Inherently humans would be the "creators" of the other species. Sounds like a recipe for some horrible problems with speciesm.
I've not given it a lot of thought but off the top of my head:
Imagine a monkey or ape that possesses above-average (for an ape) intelligence that could be a home-health assistant, taking care of an elderly person who wishes to maintain some independence and not move into a nursing home. Or a disabled adult who needs special care throughout the day.
Speciesism seems a remote risk when you consider the fact that our moral circle of concern has only widened across history.