.........to a central patch(?) panel............
It may be helpful if you could confirm whether it's a patch panel or a network switch. There's a big difference. The former is simply a convenient way of connecting cables together and the latter intelligently inspects and routes data packets to their correct destinations. Use Google images to confirm what you have and get back to me.
Let me know too what speed package you're signed up for. If it's the 1Gbps one then let me know if your network switch (if that's what you have) and your computers are gigabit enabled.
Having said all that, there's a good chance that if simply swap over routers when the new one comes you're likely to find that everything works pefectly without any faffing about.
...........saying "When it comes to switches unfortunately, it would not distribute the optical signal strength as well". Would there be a significant signal erosion?
I think that statement is rubbish. All big businesses use network switches and there should be no speed degradation in using one.