Upgrade of the ALICE experiment beyond LHC Run 3

The ALICE Collaboration completed the upgrade of detector and is now commissioning for beginning data taking during LHC Run 3. In parallel, R&D activities simulation studies are being performed to define future experiment beyond Two upgrades foreseen next long shutdown (LS3). first replacement three layers inner tracking system closest beam with a novel vertex consisting curved wafer-scale ultra-thin silicon sensors arranged in perfectly cylindrical improve impact parameter resolution significantly extend physics capability study heavy-flavor production low-mass dielectrons. second LS3 addition Forward Calorimeter at large rapidity Si-W electromagnetic calorimeter pad pixel readout, that will equip unique capabilities measure small-x gluon distributions via prompt photon production. A proposal next-generation heavy-ion 5 also preparation be discussed. aim perform measurements hadronic probes QGP, such as multiply-charmed baryons, which have so far been inaccessible, both because performance luminosity. concept new apparatus foresees an extensive usage thin modern particle identification system, combining silicon-based time flight detector, RICH muon system.