The 197 cm forward featured on just four occassions in the Cats this season, but made an impression as a defender in the VFL.
Speaking on AFL Trade Radio on Wednesday morning, Lucas claimed talks between the parties are in progress.
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"Esava is in contract. It was something we were keen to explore and push on with. We think the offer from Port to Geelong is fair, all things considered, but we continue to work on that," the former sharpshooter stated.
"We respect that Geelong has an in-contract player that they like.
Despite displaying excellent form for Peel Thunder in the WAFL, Meek couldn't cement a place in the Dockers 22, only playing six games for the season.
"What's being offered and Freo's desire to keep him (is holding up the trade to Hawthorn)," Lucas said.
"We just think with Sean Darcy being the number one ruck and bringing in Luke Jackson, Lloyd's really developed his game this year, and we think he's in a good spot to press to be a number one ruckman at another club.
"We just don't think the opportunity will be there at Fremantle to reach his potential."
The 22-year-old, who was part of the League's first-ever live draft trade in 2018, would play 28 games in three seasons, lining up largely in defence.
With new Coach Michael Voss coming to the helm this season, the former Sandringham Dragon found opportunities hard to come by playing only six games.
Lucas says Stocker has had discussions with other teams about reigniting his AFL career.
"I think there's a real chance (he's on a list next year). He's had a couple of fruitful conversations with clubs at this stage.
"Seeing what clubs get or don't get through the trade period, clubs are really focused on bringing in players to address needs and then once they move through that and perhaps they miss on a player they were keen on as an inside mid, they'll look at players they can sign in delisted free agency."
Mc-Donald-Tipungwuti played 126 games for Essendon kicking 153 goals in six seasons.
Lucas says his client has met with both clubs.
"Certainly other clubs have called and inquired about him," the former Bomber said of the former Bomber.
"Freo was of interest to him because of the potential of him moving there because he has some family in Perth.
"I think where it sits now is he just needs to make a decision around his real desire to play next year and what that looks like from a Freo point of view and how that could eventuate and also with Essendon and how that looks also.
"It's not something that will be dealt with today. Freo would look at it from an SSP point of view and Essendon would see the opportunity to retain him.
"We've had discussions with the AFL... the opportunity would sit there that he could be retained on Essendon's list with the way list lodgements work, that's yet to be confirmed I might add."
Essendon has interest in the 20-year-old who didn't play a senior game in 2022.
Earlier in the week according to AFL Media reporter Josh Gabelich, the former 2018 draftee is more likely to stay at Morrabin in 2023.
Lucas believes a contract will be on the table.
"He's out of contract at the moment. He's got some interest. I don't think that'll be realised during trade period and St Kilda will have a decision on the back of that."
"We've had open and honest discussions and there's a real interest in keeping him. There's some list spot challenges.
"You might rank a player higher than some others on your list, but that player is in contract and they may have to move on some players they may rate to free up list spots.
"We're hopeful a contract will exist at St Kilda."