Different contexts calls for different tech.
I’m seeing the Fusion as a leave-home-for-the-day type EDC, you make use of any decent mains power sockets when stationary.
For the problems where mains ports are hard to reach, I go two different approaches depending on the gadgets and hotel. More expensive hotels have more ports and usually each side of the bed, so I tend to go with a Powerport5 plugged into the side of bed opposite with gadgets all recharged at packing. Cheaper hotels, well I may go with a 12ft mains extension cord and then the Powerport2. These are about the same size/weight in total. I always have the Aukey 12W as a backup/small so for example 12ft extension + Powerport 2 + Aukey + Powercore 1000 is then a fairly robust “system”. The 12ft cord helps in airports as often where is a seat isnt where there’s a socket and you can share power with others more.
I add the mah for the expected time off-grid. 5000mah to 15000mah usually does it. I might swap the Fusion instead of the Slim.
In the hotel situation you can also sometimes find the hotel Wifi is abyssmal and your cellular signal inside the room bad also. Whilst I usually have hours of videos stored, a use of an Anker Powercore is to place your cellphone by the window (or outside on the ledge weather permitting) to boost its cell signal, then tether over Wifi to another device inside the room, a basic jerrryrigged antennae booster. This drains the window-ledged cellphone rapidly so it would be connected all evening to a Powercore (the Fusion for example) and the other device inside would be wired to the Powerport, and then as sleep beckons its moved together to the Powerport. I was in Vegas recently and exactly this problem and solution. If you spot a theme it is diversity is your tool.
Hotel life: Be careful what you touch pulling back a bed, usually there’s years of …
I think the Fusion will be improved, such as a little smaller / lighter or possibly a bit more mah or more Wattage (its Anker’s weakest mains charger). If a 10000mah Fusion was to be made, I’d like it to be corded like put 10000mah inside the Powerport5. If they have to cut back the Wattage output from say 40W to say 30W for thermal reasons that would be fine.
Those who want more mah inside them a wallplug well, they’ll feel a bit foolish having plugged it to recharge overnight to wake finding it on the floor, or worse, soaked up the water in the puddle on the hotel sink surface.