I think renders are always great. Is this a real bike yet ? There are a few things to consider regardless of if it is a render or not.
1. The spokeless wheel is only an option if you are doing a cassette or a fixed gear. If you are doing an internal gear hub. e.g. kindernay / rohloff / etc, you wont be able to have that "spokeless" wheel at the rear. You will notice that Juiced has a wheel for a motor mount, but not a gear hub.
2. I don't have any data on if or why those wheels are better. I would like to learn. Can you please share any articles / data sets that compare those wheels?
3. If these are carbon based, then long term care is crucial - good carbon wont be cheap. e.g. HED aluminum rims are 180/rim for aluminum but $400/ rim for carbon.. and those are with spokes. If we add more material, the cost will go up.