As a maker, I've been following Adafruit since they sold a handful of products, probably assembled and boxed on Limor's dining room table.
Adafruit has forked microcontroller libraries and toolchains before, and a huge chunk of their success has been directly due to Arduino and related things. So it will not surprise me if they are gearing up to announce their brand-spanking new Arduino-compatible devices, software, and ecosystem.
Adafruit already sells own-brand Arduino clones. They have a whole line of Uno-shaped boards with various microcontrollers, some drop-in compatible with the original Uno, and others with more modern chips.
Adafruit also created and maintains CircuitPython, which is targeted very much at the same audience as Arduino. Very beginner friendly, great for quick prototyping/one-offs, but serious enough that one can ship small scale projects with it.
And Python is a much better language for that than C++ (which is what Arduino users do not really realize they are using).
Adafruit has forked microcontroller libraries and toolchains before, and a huge chunk of their success has been directly due to Arduino and related things. So it will not surprise me if they are gearing up to announce their brand-spanking new Arduino-compatible devices, software, and ecosystem.
They could call it Adaduino.