From the press conference involving Hogan and Dixie Carter.
* When asked about Vince Russo (the current head of TNA creative), Hogan said as long as Russo knew his place in the company then everything would be fine.
(There's still speculation he could be on the outer, especially after the AJ Styles spat)
* The feeling is that Hogan will be a major on-screen character for TNA, but wasn't expected to be wrestling on regular basis for the company.
* One part of this deal is that Spike TV will get the first look at the proposed Hogan/Ric Flair reality series. (Which could lead to Flair signing with TNA)
* Were told this was the first of many big announcements to come from TNA and Spike TV. What would be bigger than Hogan and Bischoff signing with the company is anyone's guess. Early speculation is a possible timeslot change for Impact moving to Monday night's to go head-to-head with Raw or additional programming that was announced when TNA signed a new TV deal with Spike this year.
* To reiterate, Dave Meltzer is reporting that they only wanted to announce the signing of Hogan and Bischoff today and that something bigger is expected soon.
On top of that the possibility of going head to head and adding additional programming has caused the rumour mill to go off about possible new signings.
RVD - Unlikely as he's close friends with Booker.
Kennedy - was said to be joining Hogan's tour.
Flair
Goldberg - Close with Hogan and Bischoff, but is involved in other projects and is unlikely.
Any other recent WWE release - this is always the case so nothing new here.
Have to keep in mind that where the wrestling business is concerned, a major announcement rarely turns out to be a major announcement.