If I understand your question correctly:
Yes, A is minor and B is major. When the pitch changes along with the tempo, it will still remain either minor or major.
Say we have a track in 8A (A minor), pitching it up will change it to A# minor (3A), B minor (10A) etc, while slowing it down will take it to G# minor (1A), G minor (6A) etc.
Pitching it will never take it from minor to major or vice versa 
Whether it’s minor or major depends on the keys that the root key is combined with. The combined keys will change along with the root key, which is why minor/major won’t change