A mascot is not really essential I believe and the time might be better invested elsewhere, BUT, if you would record the whole process from design over modeling, texturing, rigging and animation and do some short clips to create a small tutorial series on that topic, that would definetely be worth it and create some more awareness for BfA. – I would go with cycles / eevee for the rendering though, to actually showcase the capabilities of the software the mascot should be promoting.
It sounds like a fun plan. 