Whenever a VC backed company is acquired, the press release says "nothing will change, except for all these wonderful new things that the parent company will let us now do". A year later, things start to change. Two years later, the situation is unrecognizable. Qualcomm has no immediate financial incentive to support the education/OSS portion, and so they'll let it die. That's how these things always go.

Arduino is over. In reality, as soon as they took VC funding, it was over.