Do you think major phone manufacturers will switch to Fuchsia?

I think it will depend on how functional Fuchsia is going to be once it is released. All of the details that people know about Fuchsia are just speculations. There are some confirmed details but other than a few pieces of information, everything about Fuchsia is being kept a secret.

According to some reports, this is said to replace Android after a few years but no one can tell for now if this is actually going to occur especially since people are not sure anymore when Fuchsia will actually become released to the public. It would need to be introduced to phone manufacturers first so that they can determine if this would allow them to have a better gadget or not.

If Fuschia is not launched it will be because the inherent difficulties of an advance that aims to satisfy all platforms in functionality have not been overcome. I am sure that if not Fuschia then some other operating system will be developed that will work on all electronic devices, but it may be that those devices, over time, have to receive updates that make them compatible with Fuschia or its offspring. Otherwise, the present experimental stage of Fuschia's development must run its course before a 'suit all' operating system is delivered to the world.