Who Me Too'd this topic

I have an older Orbi system (an RBR 50 with 3 satellites).  Works well.  But I'm thinking of going to an Orbi Wifi 6 system (RBK 753) with several satellites.

If i bring in a new Orbi wifi 6 router and some new satellites, will the Orbi app just realize i am upgrading an existing Orbi system, and somehow facilitate the upgrade (swap out passwords, connection settings, etc) ?  

Or am i setting this up as an entirely new network ?  

I have a whole house full of older equipment (like Honeywell Lyric water sensors) which will require me to manually go into to each device and connect it to a new network.  

Hoping to avoid that pain !