Can't wait to hear more and more- isn't this fun?

Jessie J doesn't care it's her UK label and she left to conquer the US where she's signed to Republic so

You got it wrong again. Correct that Lava is her stupid UK label, but she is signed to Republic through Lava. Lava first made a joint venture with Universal Republic in 2007 (when Republic was dormant and became active in 2012).

So first of all did she sign to Lava in the UK? And secondly, who knows what's going to happen.

She was signed in the US before being signed in the UK cause they didn't want her so she moved to LA and the rest his history!!!

Maybe she'll be signed to both labels. Republic for the US and Warner for Europe.
For example, Zara Larsson is signed to Universal in Sweeden and Sony/Epic/Kemosabe in the US.

I still want a 2015 album from her