There will always be a tournament. If USSOCCER said stop tournaments, clubs would call it a gathering of the better than better teams.
If the initiatives were to become mandatory, clubs could do these gatherings but it would have to kind of like AYSO does U8 and below....everybody is sort of aware of the rankings and who finished first and who finished last but no one gets a trophy or other reward and it's not officially acknowledged. Otherwise, the idea is they'd get sanctioned.
And it's not necessarily clear that tournaments would be structured that way (though I admit the market for trophies seem to suggest it, because the parents want them and the coaches need the mandatory recruiting picture with the medals). AYSO United, for example, does an end of season gathering where United teams scrimmage other United teams.