I can see why [some] would feel that way, but Tyler Christopher was out of the role for seven years prior to his passing, so I'm okay with Adam Huss retaining the role at this point in time.
I think it's a matter of either wanting Julie Berman back (and her not wanting to return) or the previous regime just not wanting Lulu to come back. Because, Emme Rylan stated she's told them she is open to returning, too, so it's not like there are not options. I'm not stating Rylan should come back (so no one shout at me), but options exist. I just don't think the previous regime wanted the role on-canvas. I'm hoping, by fall, something happens. As for Lucky... I doubt he would do it, but try and poach Greg Vaughan back, and then bring in Arianne Zucker as Sarah and have Sarah & Lucky return as lovers, which would cause some drama-rama for LIZ and LIZ ONLY!
Some weird-ass rumours and supposed "spoilers," but I don't know how true it could be.