According to Tattvārtha Sūtra and Jain doctrine, a being in deva loka is a separate soul with its own new birth and karmic state. So the same worldly mother-child family relationship is not guaranteed to continue exactly as it was in human life.

In Jain understanding:

• Soul is permanent, but body and worldly relations change.
• In deva loka, beings are born as devas/devīs due to their own karmas.
• So your mother may be born there as a deva/devī, but the exact family bond of “my mother” is not assured.
• If both souls are in the same celestial realm, they may know each other or have some association, but this is not something Tattvārtha Sūtra guarantees.

So the best Jain answer is:

Possible? Yes, as souls may be born in the same deva realm. Guaranteed as your mother in the same family relationship? No.

In Jain dharma, attachment to worldly family bonds is not the goal; the goal is moksha through right faith, right knowledge, and right conduct.