So, how long before we start getting pics worthy of the harem tag? Ruby gets all the bitches... I'm not saying I want it to happen, I just see it as inevitable.

I suspect that won't happen, or if it does it won't happen for quite some time. The character interaction just doesn't suggest shipping to me yet, at least not outside of JNPR. I suppose a case could be made for Ruby/Jaune, but it would be a tenuous one at best.

Also, that Corgi pillow. I have to wonder if Ruby throwing it at her sister that one time was a subtle way of her calling Yang a bitch.

Keep in mind there's rarely any indications that lead to the various ships Marisa Kirisame gets beyond being teamed up or interacting with a given character.
With a cast full of girls, there's going to be yuri eventually, damn the canon and the actual tone of the series.