Sadly I think you are right but do you
A. Think people would miss the titans and sharks?
and
B. Think Ipswich and central coast/adelaide/South Island NZ would be better options and more productive for the game than the Gold Coast and cronulla currently are?
It's hard to answer A without being subjective - and that's a trap.
OF COURSE the fans of those clubs would miss them, but what you're suggesting is a relocation instead of just binning the teams like what happened with Souths (and eventually Norths in a more convoluted way via a failed joint venture).
For Sharks fans, a relocated Sharks would still have several away games in Sydney - maybe using a new, modern jersey at their new home, and the 1970s/80s design for games in Sydney? That could work. It's close to what the Perth Bears are shaping up as.. and might be workable IF the Perth Bears can show that the model works.
Gold Coast is a puzzle. Horrible branding IMO, and a location that's renown as a graveyard for sports teams - regardless of the fact that it's a big population centre. Then there's the AFL operating a team there, so the fear is that leaving that market basically cedes it to AFL. While I've been a big proponent of them rebranding (heck even a soft re-brand to the teal & orange the Gold Coast Dolphins bid used.. or making their jerseys more GOLD instead of blue), my feeling is that they just need a sustained period of success to capture more fans AND get taken seriously. They haven't had that yet.
For B.. well, there's ways to *potentially* get the best of both here. We'll have to see how the Bears go with their Perth operation, and if it works it could ABSOLUTELY be a model for the Sharks moving to NZ. As for the Gold Coast, nah.. I think we're stuck there.. and Western Corridor/Ipswich will be their own entity, their own club... but the potential for Gold Coast is there *where they are*... it's just getting the right formula... (maybe getting Brisbane Easts & their money/expertise on board with GC?)