They'd ensure there was some cannon fodder in there, to whom the money was more important than the glory. Do you think Spurs or Arsenal fans would be bothered too much about coming bottom if they were guaranteed £50m just for taking part before a ball was kicked? Probably run it like the CL as well, with groups, play-offs, knock-outs and maybe like the NFL/MLB with two different conferences. So most clubs would have an interest as long as possible.
But at the end of the day you know it would be Bayern, Juve, Real Madrid & Barcelona, with maybe PSG, Liverpool or someone else occasionally getting a look in.