That could happen. When GLONASS (the Soviet knock-off of GPS) came out, a few companies came out with combination systems to try and get better accuracy. The main problem with those systems was that the Russian system is not as accurate as GPS.
So yes, there will probably be dual GPS and Galileo systems, just don't expect them to be cheap.
For those of you who aren't sure, google for "GLONASS"
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That could happen. When GLONASS (the Soviet knock-off of GPS) came out, a few companies came out with combination systems to try and get better accuracy. The main problem with those systems was that the Russian system is not as accurate as GPS. So yes, there will probably be dual GPS and Galileo systems, just don't expect them to be cheap. For those of you who aren't sure, google for "GLONASS"