The official changelog for the 1.05 patch (which rolled out to Steam in early 2018 before being repacked) addressed over 50 bugs. For the repack user, the key improvements included:
Crashes when downloading 1000+ custom logos via Community Creations were reduced. The repack allowed users to bypass the 2K server checks, making offline CAW (Create-A-Wrestler) management seamless. WWE 2K18 Update v1 05 incl DLC-CODEX repack
Visually, WWE 2K18 is a powerhouse, and the PC version is the best-looking version available (provided you have the hardware). The official changelog for the 1