I haven't watched WWF, as you can probably tell for over 10 years so i don't know the reason for Brock leaving but i very much doubt he'll ever go back into the sports entertainment industry as there is now too much for him to gain in mma, i.e improving his standup, movement, defence & general alround game.
groundnpound you say he'll destroy plenty of heavyweights, that he may but as i said in reviewing the fight, he's now been found out to be someone who can't take a flurry of good precise punches probably down to his lack of movment & inability to instinctively attack without using his brute force.
People like Shane Carwin & Frank Mir will now realise this & work on a specific game plan to utilise Brock's insufficiencies, as he now has too much to learn to get back to the top & this won't come to him with full effect in the next 4 to 6 months interms of him showing it in an actual fight.
Carwin only needs to improve his stamina as he already has some wrestling ability, which he'll need to use if/when he fights Lesnar again. Frank Mir has all the tool's & skill to match/beat Lesnar but will have to go into the fight with professional thoughts rather than personal ones & he'll need to be more forward than in the Cro Cop fight, if both fighters do this i feel they will be in with an even chance of beating Lesnar as i think no matter how much Lesnar improves between now & his next fight, with it being his first fight back he may have tendencies to go on instinct & just charge forward with his size & force & the new specific game plan of Carwin/Mir may come into effect???
I am pretty certain he will fight Frank Mir next as Carwin v Nelson is set for UFC 125 Resolution on new years day so Lesnar v Mir maybe put on one of the following cards.
UFC 126 February 5, 2011 Las Vegas, Probably won't be on this as this is the possible card.
Anderson Silva v
Vitor Belfort
Forrest Griffin v
Rich Franklin
Evan Dunham v
Kenny Florian
Jon Jones v
Ryan Bader
UFC 127 February 2011, Sydney, Australia
No card as yet but i don't see them fighting in Australia.
UFC 128 March 2011, Dublin, Ireland
No card as yet but with the promise of some big fights over here & due to the time frame of Carwin v Nelson, this could be a possibility???
UFC 129 March 2011, Abu Dhabi, United Arab Emirates
As this is in the same month as UFC 128 this is a more likely card & country following the 10% purchase by the government owned Flash Entertainment group & they'll want big names!!!.
UFC 130 July 2, 2011, Las Vegas
Again no card yet but given they'll may want Carwin/Nelson v Lesnar/Mir set for the August this may not fit the time scale.
With no date set for Velasquez v dos Santos, i think this maybe set for the Abu Dhabi card or who knows maybe even Dublin
i think Lesnar v Mir maybe on the same card with the winners fighting for the title at UFC 130 July 2, 2011, Las Vegas card. Unless they want Shane Carwin should he beat Roy Nelson to make it a possible second standup title war following Velasquez v dos Santos.... Who knows man, who knows???