I've read some rumors somewhere that a new Beast Wars series in the Transformers Prime universe was being considered? Did the TFP creators mention anything about this or not? Just curious.
No such rumours exist. There's been plenty of just fans imagining what it might be like for fun, but nothing close to official.
Bantor was an offhand comment made by a guy high on anesthesia. I can only assume by Depth Charge and Blackarachnia you mean Dreadwing and Airachnid, both of which have nothing to do with Beast Wars.