I personally still very much doubt there's anything "romantic" between Chibiusa & Hotaru, and all those so called "hints" that some people have mentioned that seem to suggest that their relationship might be "romantic" I have done it many times with many of my female friends too. Holding hands is nothing, I used to hold hands with many of my female friends all the time when I was in high school and we still do sometimes even as adults, and we did a lot of things together that others might think are "too intimate", apart from holding hands, some of my female friends and I also used to have slumber parties together often and some of us would sleep on the same bed together. I also have a childhood friend whom I am especially close to and we've done many things together growing up, we used to hold hands all the time when we were kids and we still do sometimes, we used to sleep on the same bed together often in the past too before she got married, we even took baths together sometimes, we are that close and I was even her maid-of-honor at her wedding last year, we are very much like sisters. All these things we did and do together don't necessarily mean there's anything "romantic" between us, sometimes when 2 people are just very close friends, they feel comfortable doing such things together that other people might see as "too intimate" even when the relationship is just platonic. I am merely very close to many of my female friends that we just feel comfortable doing all these sorts of "intimate" things together because we're like sisters, believe me, some of the things my gal pals and I have done together are a lot more "intimate" than Chibiusa & Hotaru have ever done together. Has any of you here ever heard of "boob slapping"? My gal pals and I used to do that to each other often when we were in high school too
It's one of the main reasons why I'm still very skeptical about Chibiusa & Hotaru's relationship being anything other than platonic, their relationship just seems so much like the close friendship I have with my childhood bestfriend and some of my other close female friends. Another reason is because it's also very similar to Chibiusa's close friendship with Sailor Pluto...luckily no one seems to think there was anything "romantic" between Chibiusa & Pluto too!
And even in the original manga and the 90s anime, Chibiusa's bond with Hotaru was always shown to be merely platonic friendship and maybe even sisterly love, the only character that Chibiusa was ever romantically linked with that was canon in the manga and 90s anime was Pegasus/Helios. And if Crystal continues to remain faithful to the manga, which I know they most likely would, Chibiusa's relationship with Hotaru would probably continue to be merely platonic. I think once they get into the Dream arc and Pegasus appears, things would be different.
But it's to be expected for some people to interpret things differently, personally I am still very skeptical and it's obvious to me that their relationship is merely just platonic, but that's just my personal interpretation of their relationship. If other people interpret their relationship as "romantic", well that's their own opinion.
We can only wait and see what happens and see what the writers will do with their friendship from now on...I suppose it's still possible for them to take their friendship in a more romantic route in the future, but I personally would not bet on that.