ASUS actually is rolling out new Zenpad tablets every years.
Here are two fairly new ones:
ASUS ZenPad 8.0 Z380KNL
ASUS ZenPad 3S 10 Z500KL
The issue with these two is that I am not sure if they are dual sim.
there is a tablet that fit your description though:
Acer Iconia Talk S A1-734
7" dual sim. If you don't mind the Acer brand and the MediaTek CPU, then it's what you were asking for.