There are different types of ARM license. Companies like Apple own the license which allows them to independently design and develop their own ARM cores using the ARM instruction sets. Several other companies, including NVIDIA, Samsung, Qualcomm etc have the same kind of license.
You can also license ARM designed cores and other things ARM design.
Whoever buys ARM, I don't think it'd be a significant worry for any of their architectural licensees (like Apple, Samsung, etc). The ARM business model is entirely based around licensing their technology, it'd be unlikely for that to change under new ownership. Plus, I doubt regulators would let anything like is being suggested in this thread happen.
You can also license ARM designed cores and other things ARM design.
Whoever buys ARM, I don't think it'd be a significant worry for any of their architectural licensees (like Apple, Samsung, etc). The ARM business model is entirely based around licensing their technology, it'd be unlikely for that to change under new ownership. Plus, I doubt regulators would let anything like is being suggested in this thread happen.