Even if you had to switch to a different router there's nothing stopping you from setting up the same SSID and password on the new router. It should be a seamless transition for any WiFi clent devices.
I have 1 Gbps optic fibre and the t3200 can handle it, but beware as it can only truly handle those speeds at wired connections, while wireless maxes out at around 500 if no one is using the network, plus many devices cant even go beyond 100 ie most smartphones.
I am still trying to find a way to maximize the wireless network speeds in my home and have been thinking of the Asus ROG router AC5300 but I really would like to hear someone's bit and if telus even allows us to use routers provided by us...
this is incorrect
We've had fibre for quite some time @ 150Mb and just upgraded to 1Gb with Optik TV.
The router is the same T3200M we've had since fibre was installed.
Wired speeds are now in the 930 Mbps range
Wireless (5G AC) are in the 400-450 Mbps range