Dublin's Croke Park has already hosted combat sports royalty: Muhammad Ali won there in July 1972. Just 25,000 fans attended the fight, meaning McGregor - who just set a new gate record at Madison Square Garden - could outdo The Greatest of All Time.
Allowing McGregor to challenge for another title belt would be a huge move by the UFC, given criticism that the Irishman had never made a title defence.
Yet UFC president Dana White has allowed his top-earner unprecedented freedom in chasing outrageous matches and watched the money roll in as a result.
Woodley laid down his challenge (not for the first time) to McGregor in no uncertain terms.
"If him and his coach John Kavanagh and everybody think that Conor can do well against me and they gas this dude up - you know, he's a dope fighter but there's levels to this," Woodley said in a video on his YouTube account.
"When you start going up, it's like me going up to 205 [pounds] and challenging guys at that weight. When you come up to this weight brother, it's real power, it's real people that will put real hands on you, that'll put you down to the canvas and you will not get up unless I let you up.
"So if you want to get in there with a lion and get your head bit off and have me spewing your blood all over the octagon while you've got that goofy tiger tattoo on your chest, looking like a clown with a clown on your chest, we can do it.
"We can do it in Ireland, Dublin, we can do it in the back of White Castle, I don't care.
"But just know, I ain't that guy. I don't like to try and act overly hood or overly ghetto, a million hood stripes, but where I'm from you don't call me a bitch, No.1. No.2, you don't fake like you're about that life. If you want to scrap, if you want to make this money, let's do it. If you don't, shut your mouth. Just do your thing."
Woodley, who fought as the co-main event at UFC 205 when McGregor made history by winning the lightweight title from Eddie Alvarez, had a backstage confrontation with 'The Notorious' at Madison Square Garden. He was also angered by a "bitch" taunt from McGregor.
Woodley warned McGregor that he didn't have the size or power to fight at welterweight, despite twice facing natural lightweight Diaz at 170 pounds.
"Now that we got that done [UFC 205] - that's off the table - if Conor want it he can get it. He knows how to get in touch with Dana, he knows how to get the contract set, and he really don't want to fight," Woodley said.
"I'm not saying he should want to fight because I'm not a little dude. I ain't Nate Diaz. Nate Diaz is not a welterweight. He did not do well at welterweight because he was undersized and these dudes are real gorillas in this weight class.
"I want you guys to realise this about me, I'm not one of those guys that's trying to position myself off Conor. I actually got no beef with Conor. He doing his thing, he's getting what he want to get out of the game and I'm getting what I wanna get out of the game. But it's a few people that you can step to with that BS and it can slide, I just so happen to not be one of those guys.
"I ain't trying to build myself off Conor. I've got legendary ideas about my career. I want to be a great. There's about four or five more people I've got to beat to solidify that position and that's my focus and that's my goal. If he wants to be a stumbling block that gets me to there faster, so be it."
Woodley still has a more immediate concern before he can take on McGregor. He'll fight a rematch against Stephen 'Wonderboy' Thompson. Their UFC 205 bout ended in a majority draw, with Woodley winning on just one judge's card.
After claiming the welterweight belt with a knockout of Robbie Lawler at UFC 201, he has been agitating for money fights against the likes of St-Pierre and Nick Diaz.
McGregor is currently on a break and has, according to the UFC, relinquished his featherweight belt to Jose Aldo.
