Will existing nexus memories remain in place after patch?

I'm just curious with the massive changes coming to the Nexus next week, will all of our existing memories/nexus come through intact or will there be some level of shuffling, resetting and re-balancing of the map itself?

- placed memories
- memory mods on existing memories
- distant memory locations
- boss memory locations

Really just wondering if should be running all those 20 mod memories now because they may get wiped with the reshuffle.

There's most likely a manifesto coming i suppose, but was curious.