New
#21
If your current setup is working well, then there would not be a need to purchase new equipment. Unless you are going to get Internet with 1000mbps speeds. Your system will work just fine.
Streaming media will also do fine on 100mbps for 720p, even for 1080p at a lower rate. I went with a wired router, a POE Access Point at the time when I redid my network and used a 2.4GHZ 300mbps Wireless-N Access Point, because we did not have a need for storing tv recordings on a NAS or the need of backing up a laptop or desktop, since everything was stored locally at that time. When I went through the assessment that when Wireless-AC Access Points came down for Engenius, I stayed with the brand, that I had originally used for a 2.4GHZ unit, now I have the EAP-1750H for 1300mbps burst. My LAN speeds for Wifi run stable around 867mbps and I have zero issues if I want to stream across the network or even from online of 50mbps down through my provider.
Your question now is like going on a car lot and telling the agent that you are looking for a new car, but your current one works just fine, so you will not be doing anything.
If you want faster LAN speeds and be mobile, go with a Access Point or two of the model that I have, which works flawlessly for me and the price is decent. Everything else runs into a ISP Gateway with the Wifi turned off or you place your own personal Gateway that is wired only behind the ISP gateway through a Passthrough mode.