That day dreamer was me.

I still think it would be a really good feature. If I can't get that, I'd still be more or less happy with a pre-post switch. But I don't know how close this 803 is to being the production model, so it's hard to know if they can or would make any significant changes at this point. Probably not, is my guess.
I really like Quilter as a company (I have one of their guitar amps as well as a BB800), but sometimes I wonder, whom are they talking to when they decide which features are/aren't desirable or necessary on a bass head? Their line of bass gear, though obviously of high quality, includes several curious choices that, at least IMHO, differ from what most bassists would want or expect.