When tp-link plug these holes there will still exist many exploits possible to get root access and if not we will have to flash it through SPI.
Edit: here is one of the first exploits available: https://forum.openwrt.org/viewtopic.php?id=63123
It all really depends on how much the FCC will be willing to bother hardware vendors whose products end up as popular hack platforms.
When tp-link plug these holes there will still exist many exploits possible to get root access and if not we will have to flash it through SPI.
Edit: here is one of the first exploits available: https://forum.openwrt.org/viewtopic.php?id=63123