What types will UB Assembly and UB Burst be?

As you may know, later this year a new pair of Pokemon games will come to the 3DS systems. Those new titles are called Pokemon Ultra Sun and Pokemon Ultra Moon. Yup, as you may have already figured it out, they are related to Pokemon Sun and Moon. Interesting enough, they are not sequels. Instead, they seems to be prequels, but we don't know for sure.

Those games will introduce new Pokemon and UB Beasts, a thing which has never happened before on a mid-gen game. The first new UBs have been revealed and they are UB Assembly and UB Burst. Besides their appearance and names, we know nothing about them. But Pokemon fans from all across the glove have started guessing their types.

What types do you think they are?