Micro Art Studio has upgraded their Holoads kits as part of their Infinity terrain line.
From the update:
Today we have released the upgrade packs to our District 5 line and
Infinity Holoads Upgrade set 1
Infinity Holoads Upgrade set 2
In each package you will find 2 different Ads (shown on the pictures) and additional mounting parts from HDF.
Of course the catwalk and District 5 buildings are not included