I would be very weary of keeping regani with ornatus, ornatus with transcriptus (true transcriptus) or transcriptus with marlieri. These will all readily interbreed unless they have already established a strong bond and if recently moved there's no guarantee a pair will stay paired after the move or that a pair will stay paired once the pair forms in the tank they are intended to stay in with the option of all these other fish to hybridize with.
It's not even recommended to keep Juli's with Chalinochromis sp. since they so closely resemble one another.
I would definitely split them up if you intended on raising fry from these spawns.
Otherwise, if you didn't intend on raising or distributing any fry from the resulting spawns, it would be OK to keep them all together. You'd still need to keep an eye out for conspecific aggression. The smaller, less aggressive Julies (ornatus and trans) are very likely to get bullied by the marlieri and regani once they really start getting some size on them.