No. By the time of the Islamic conquest (or Arab conquest, it's an academic debate at the moment, but not particularly relevant here) the Ancient Egyptian Religion was, as far as we're aware, completely gone. Egyptians had long become Christians, specifically the predecessors of today's Copts. Indeed, the Coptic Church uses the Coptic language, which is the modern form of ancient Egyptian (most Egyptians now speak Arabic instead). Now, it should be said that prior to Christianisation (which happened at roughly the same time as in the rest of the Roman Empire), Egypt had been part of the Roman Empire for quite a while, and prior to that, was ruled by a Greek dynasty (though one which had "gone native"). There was already a certain amount of syncretism (for example, there are some status of Hermanubis from the pre-Christian period, an amalgam of Hermes and Anubis). However, Egypt does seem to have kept its own religion to a greater extent than many other parts of the Roman Empire.