Initially we thought that AGEIA (now owned by NVIDIA) may have been delaying UT3 for Linux but their representatives later denied such allegations. All that Ryan Gordon, the developer responsible for both the UT3 Linux client and server ports, has said is that these delays are stuck in the legal department at Epic Games.
Ryan Gordon recently talked at UCLUG with topics from education to Loki Games and SDL, but he hadn't mentioned any new details about Unreal Tournament 3. There is a 24-page thread in the Phoronix Forums with talk and speculations surrounding Unreal Tournament 3 for Linux, with some believing the client will never be released -- partially due to speculations that Microsoft may acquire Epic Games.
We haven't heard any official updates in months and quite frankly the UT3 Linux client may never see the light of day. Forum moderators on the Epic Games' Forums have reportedly been deleting threads from gamers inquiring about the Linux client's status.
While there are a few new games coming to Linux, it's certainly an unfortunate situation right now with Epic Games and it will be a blow to the Linux gaming community if the Unreal Tournament 3 Linux client never makes it out the door.