Zendure has put its latest product, the MIX GO, up for crowdfunding on Indiegogo. It is a 5000mAh power bank that can also plug into the wall to power devices compatible with 45 watt (W) charging. Not a brand new concept, admittedly, but this version is also equipped with state-of-the-art gallium nitride (GaN) technology.
https://www.notebookcheck.net/Zendure-launches-the-MIX-GO-a-hybrid-45W-wall-charger-power-bank-on-Indiegogo.449456.0.html
45W is rather awkward of a notebook charger, and 5000Mah really isn't a lot considering the charging efficiency, it will charge a modern smartphone once, basically. Sounds like most people would be better off with two separate devices unless their packing weight is really limited and they'd really just want one gadget to do everything, forget the speed (for laptops) and capacity.