for t-20 it won't be exciting if they are following their previous format where associate playing among themselves first and only few get to play in next round, this process turns 20 team tournament into 14-15 teams competition.
But again ICC won't leave the ranking setup, in fact they are scared of it, same goes with the ODI.
Nope.. they already changed the format for the Men's T20 World Cup in 2024. If you remember, there were 4 groups of 5 teams each. India were placed in Group A, along with United States, Pakistan, Canada and Ireland. For the 2026 edition, it is going to be the same (4 x 5), and from what I heard it will be same in 2028 as well. The expansion will be implemented sometime after 2028. BTW, they expanded the ODI World Cup to 14 teams in 2027, from 10 teams in 2023 edition.