I do plan on doing something along that line yes. If story mode is enabled you will get aliens in order as ben did in the show, if it is disabled you can unlock any alien by finding certain quest givers such as Max and Azmuth.
And yes you will be able to make obtain the ultimatrix. either after a mission in story mode or through crafting when story mode is disabled.
If you have any questions please send me you discord and i will happily listen to your ideas and explain how i plan on doing things.
I had an idea that such a aliens X being so you turn and only you are teleported to the dimension of the alien X more only your vision travels to it your body stays in the normal world so you have to debate how has a command of the ben 10 that is so there are those colorful chats that you have to click to respond more expensive please make the mod have a portuguese version like minecraft ta in portuguese and the mod also because i can not read english i'm using google translate[/pre]
It's sort of on hold at the moment, you could say it will pick up when I get out of school in a few weeks. And whatever modeling platform you know best will probably work. If you want to help just give me your discord.
I'm not going to make any promises, but it mostly depends if I get some new modelers and at least one more coder. If I have another coder it will one make this faster and two if one of us is better at doing certain things we can divide and concur.