Can You Add Sponge on Minecraft Bedrock
Currently the SpongeAPI is designed to work with the features the Java Edition provides. The changes that the Bedrock Edition provide are different in ways, which would require an alternative API (and implementation) to support.
I can’t see this being done in the near future, but maybe if they become more similar (somewhat unlikely) it may be possible.
This has been discussed multiple times fairly resent. Here is a link to that thread.