A huge news had been aired recently that two of the major wrestling promotions at this moment; WWE and TNA Wrestling signed multi year partnership deal. This is the first time WWE is working on such a deal since the 1990s. After the promotion became the biggest name in the wrestling world, they never worked in such deals.
It was seen for the last three years that the two promotions worked together in some instances. Mickie James; then TNA Knockouts Champion became the first wrestler to appear in WWE as a TNA star in 2022. Since then, a number of crossover deals took place and the fans were really excited to see something really big.

Tommy Dreamer Gives His on WWE – TNA Collaboration and Discusses How Long it was in Works
The big announcement was finally made recently, when both companies announced that they have signed a multi year partnership deal and they will now be seen working together regularly. Wrestling Legend Tommy Dreamer recently spoke about this historic deal while speaking on "Busted Open." He explained how long was this deal in works;
"Probably what, a year ... when you had the crossovers and all that stuff from the Royal Rumble with Jordynne," Dreamer said, referring to then-TNA Knockouts Women's Champion Jordynne Grace's surprise participation in the 2024 Royal Rumble match. "Both companies are separately privately owned.
Tommy Dreamer worked in WWE and TNA Wrestling
“No one will tell somebody else how to do their own stuff. We saw the unsuccessful creative brand of ECW when, if it was left alone, the WWE's relaunch, if it was left alone, I thought it could've been great, but it falls into another WWE property and then it won't be as successful or well-achieved."

Tommy Dreamer is an ECW Legend
"If I use Jordynne and Joe Hendry as my example, it was proven successful, and The Rascals too. Zachary Wentz came out of his shell and proved he could also be a great singles wrestler. I'd love to see if an NXT world title match with 'NXT' players could be defended on a TNA pay-per-view. That's something I would love to see, but now more things are possible." Explained Tommy Dreamer.
Check out the full coverage of WWE and TNA partnership deal here
TNA Wrestling had been the biggest competition of WWE during their early days but with time, the promotion lost their relevancy. With this deal, they can become relevant again. It is not confirmed how they will be working together, but rather than just random cross brand appearances, a brand vs. brand invasion angle would be more exciting and this would probably benefit both promotions even more.
Credit "Busted Open"
H/T to Wrestling Inc. for the transcription