  The event selection developed for the Fermi Large Area Telescope before
launch has been periodically updated to reflect the constantly improving
knowledge of the detector and the environment in which it operates. Pass 7,
released to the public in August 2011, represents the most recent major
iteration of this incremental process.
  In parallel, the LAT team has undertaken a coherent long-term effort aimed at
a radical revision of the entire event-level analysis, based on the experience
gained in the prime phase of the mission. This includes virtually every aspect
of the data reduction process, from the simulation of the detector to the event
reconstruction and the background rejection. The potential improvements include
(but are not limited to) a significant reduction in background contamination
coupled with an increased effective area, a better point-spread function, a
better understanding of the systematic uncertainties and an extension of the
energy reach for the photon analysis below 100 MeV and above a few hundred GeV.
  We present an overview of the work that has been done or is ongoing and the
prospects for the near future.
