It's a 3:2 tussle between Modiphius with Star Trek and Catalyst with Shadowrun and BattleTech to see which publisher appears the most often.
Despite Secrets of the Crucible's uncertain fate, I imagine some KeyForge players will be keen to have the supplement. It may be the only one the RPG gets which will make it rare.
"…all three product lines are still ongoing." says a spokesperson referring to FFG's nine lines.