I'll offer this as a starter for ten.

First Team Squad

Brandon Pickersgill
Joe Brown
David Foggin-Johnston
Ross Oakes
Rhys Evans
Greg Johnson
Rowan Milnes (loan)
Jordan Lilley
Sam Hallas
Connor Farrell
Evan Hodgson
Adam Rooks (loan)
Steve Crossley
Sam Barlow
George Flanagan
Thomas Doyle
Liam Kirk
Anthony England
Levy Nzoungou (from 1/1/20)
Harry Shackleton

Reserve Grade Squad

Ethan O'Hanlon
Ryan Butterworth
Alix Stephenson
Brad Gallagher
Ryan Leadbetter
Luke Littlewood
Cameron Berry
Keelan Foster
Bradley Ho
Mathew Race
Sam Smith
Ebon Scurr
Vytas Vaznys
Cobi Green
Murphy Smith
James McGurk
Billy Jowett
Jacob Smillie
Dewi Billingham
Kian Oldroyd

Elliot Culling still has a year left of his contract, according to last years sticky. He wasn't included in the list of Reserve Grade players and I'm not sure if he's in the First Team squad.
Two other players have been mentioned during the off season by other posters, namely Luke Punton and Oliver Scott, but I've not seen their names mentioned anywhere else, so again, not sure about them.
As for contracts, there are only three players who I have seen having contracts confirmed until the end of 2021, namely, Crossley, Lilley and Oakes. Everyone else appears to be on a one year deal.
I don't claim all this is 100%, its just based on what I've been following on social media and reading club announcements. If anyone knows I've got anything wrong, by all means amend.
There should be a squad number announcement soon, which will definitely help.
Once everyone is happy I'm sure it can be turned into a sticky, but I believe only admins can do that.
Hope this helps.

Depends if they improve the squad.

I am just thinking back to 2017 when the squad was full of young players, this Sunday just gone shows that without the senior players would of been a lot worse, as any kids who come in Leeds would expect them to play.

Couldn’t agree more, however we have to stay up and in the absence of seasoned quality players if there kids are better than ours and improve the team then IMO we have to proceed. This year isn’t ok to blood our kids but get relegated in the meantime

Current Squad

Darren Pickersgill 2020
Joe Brown 2020
David Foggin-Johnston 2020
Ross Oakes 2021
Greg Johnson 2020
Rowan Milnes (season long loan from Hull KR)
Jordan Lilley 2021
Sam Hallas 2020
Connor Farrell 2020
Evan Hodgson 2020
Adam Rooks (season long loan from Hull KR)
Steve Crossley 2021
Sam Barlow 2020
George Flanagan 2020
Thomas Doyle 2020
Liam Kirk 2020
Anthony England 2020
Levy Ngounzou 2020
Dan Waite - Pullan 2020
Matty Dawson - Jones 2020
Brad Gallagher 2020
Ebon Scurr 2020
Rhys Evans (season long loan from Leeds Rhinos)

On DR from Hull FC
Jack Brown
Joe Cator

Hooker Danny Maskill signs for 2020https://www.bradfordbulls.co.uk/article/650/maskill-signs-following-successful-trialrl