The rumour was they were having to change how the heads attached to accommodate the LED feature. Switching to magnets instead of the usual ball joint connection. Who knows if there is any truth in that or not. Either way the delay is ridiculous!
I'm doubtful on the magnetic head sculpt as the reason for the delay...
Actually hoping for the traditonal head post style sculpt because I ordered a BvS head sculpt (which looks great) in case they try to make the HS for this figure movie accurate. His hair actually looks
bad in the theater release, when suited up, at least--so for me it's a 'no thank you!' to movie accurate, lol. But anyway...
The political unrest in Hong Kong might be a reason, but it doesnt seem to have held release of other HT figures (? admittedly making an assumption here... are other figures getting released amidst the protests and street riots, etc?).
Outside chance, I suppose, that HT is holding off for an announcement of the Snyder cut official release to try to capitalize on the inevitable hype that will generate. The SC is
going to be released after Sunday's outpouring of support on Twitter. According to Cinemablend the total number of tweets was actually around 900K. Even at 770K tweets (which is what @releasetheSnyderCut posted from its analytics) the hashtag reached an estimated 8 billion eyeballs. Amazing! Now on IMDb we're suddenly seeing a DC Film appear in the WB release schedule that is "completed" slated for April 3, 2020, which coincides with the launch of HBO Max. Seriously: what else could this possibly be?