Higher resolutions can still be set via the 'setres' command or by editing Unreal.ini.
Update: At a certain moment the menu showed multiple resolutions in one choice. When I set it the client crashed:
ScriptLog: HideConsole()
ScriptLog: jczConsole leaving UWindow state
ScriptLog: jczConsole entering Menuing
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-1/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-2/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-3/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-4/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-5/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-6/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-7/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-8/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-9/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-10/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-11/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-12/16)
[...]
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-121541/16)
Error: UnrealVideoMenu dasacellars.UnrealVideoMenu4 (Function UnrealShare.UnrealVideoMenu.ProcessLeft:00C3) Accessed array 'Resolutions' out of bounds (-121542/16)
end task>>>