There's definitely no plan for 2020 I'm aware of - they've just made a heating jacket AND cooling jacket in one garment, it's ridiculously expensive and is super bulky so it's not being bought into the UK.
Have you seem the new Dainese Smart jackets? can be worn under your Rukka jacket and is probab;y your best option right now - that or the Ixon stand alone vest anyways?