It's likely to be monthly payouts as a practical means of managing the process, carrying float for further gains, and keeping players from doing idiotic shit.
Remember when you guys are thinking about this stuff that all of this work is being done to set floors (now and evermore) so that recruits and coaches can know what the future, should they come to Texas, looks like. None of this can be used as an enticement, yada yada, but in the future, matter of fact history is not ignorable and will be front and center for recruits and transfers to understand. That's a big point of all of this.
That considered, remember that this doesn't include any corporate NIL work for players that is very real and will only get bigger for the bigger names, which is why corporate density in Austin and Texas is a bigger deal, and a competitive advantage, than people understand right now. The 3rd string DE will still pretty much just get his expected floor, but the starting QB or point guard probably get far above the floor if they're worth a shit and have a symmetrical face. It also doesn't include crowdfunding efforts from the fanbase, memorabilia set-ups and signings, etc.
Plonsky and crew are on the cusp of being able to pay female athletes more than any other college program in the country, and more than most semi-pro female sports leagues as well. She's not that stupid. Bickering over "equity" will come a lot later.