CHALLENGE The_ CHAMPIONS LEAGUE, The_'s CHALLENGE CHAMPIONS LEAGUE

I might be missing something, but what fundamentally new is being announced here?

It's unclear what's so hard to understand here. :)
Personally, I expect the tournament to be as popular, spectacular, intense, and intriguing as the real League, where the strongest players are gathered. Not just 8 or 10 players selected from any tournament, which not all strong players can get through for various reasons, and not only due to their gameplay. The coverage and presentation of the tournament, both on the forum and in the broadcasts, will play a significant role. Newcomers will learn more about the veterans, see more battles between strong opponents, and witness the clash of tactics and ingenuity. The confrontation between new, but already well-prepared players and veterans will be particularly interesting.
Some new contests and features during the tournament will add variety. It might be a good idea to add news or a brief description of the most interesting battles. Perhaps this would be best done by streamers who regularly stream. It's impossible to watch/rewatch all the streams, but I think everyone would be interested in reading brief summaries.