This seems significant: https://www.nasa.gov/press-release/nasa-awards-contract-to-launch-initial-elements-for-lunar-outpost
SpaceX will very likely sacrifice an entire FH stack for this one. SFNow goes into the details: SpaceX wins contract to launch first pieces of NASA’s Gateway lunar outpost – Spaceflight Now
"SpaceX has launched three Falcon Heavy rocket missions to date, all successfully," So... were the 2nd and 3rd launches video-cast? For some reason I don't remember those at all... it appears at least #3 was DoD, so was that hush-hush?
I'd say it's likely that SpaceX FH will get the Europa Clipper launch as well. Something similar to the Gateway pieces. It sure beats the $1 billion for an SLS launch. Nothing is finalized, but nothing else except a FH could do it until Super Heavy - Starship prove themselves. That will not happen before a deal is finalized with FH though. So it is going to be a FH.
Oh geez. This needs to go into the SLS capitulation thread. SLS - On the Scent of Inevitable Capitulation