Kingdom Hearts event crossover!?

[Enkidoh]

Ignoring my personal hatred for Kingdom Hearts, a KH crossover is highly unlikely to ever happen, and not just for the legal nightmare it would require (seeing as it's populated with Disney characters and is co-produced by Disney, and would thus require a lot of copyright wrangling to be negotiated first, which would be too costly for SE to bother with for something that is a short term event in FFXIV), all the previous crossover events have all had some deeper connection to FFXIV itself and the development team in particular.

Like the FFXI events were to celebrate FFXI's eleventh anniversary of service and official winding up of it's storyline while also paying tribute to FFXI's producer who was also the original producer of FFXIV before Yoshi took over (Hiromichi Tanaka), and the FFXIII event was actually a result of a private joke between Yoshi and FFXIII's producer Motomu Toriyama (who had a FFXIV miqo'te costume and Grand Company weapons for Lightning in Lightning Returns), and that Yoshi would "find some way to repay the compliment by having Lightning appear in FFXIV" (paraphrased), which officially was made to cross promote LR-FFXIII's worldwide launch.

As there is zero connection with Kingdom Hearts with the FFXIV team, and the only connection KH's producer Tetsuya Nomura has with FFXIV is he did some guest artwork for Heavensward's launch, I see this never happening (or at least highly unlikely I'm sorry to say).