The Bethesda Softworks Forums offer a DOOM 3 BFG Edition FAQ with more on the upcoming first-person shooter bundle (thanks Badboy). While this will include multiplayer support for all three DOOM games on consoles, PC gamers will not be given the chance to relive classic DOOM and DOOM II multiplayer:

What multiplayer is included for DOOM 3 BFG Edition?
ONLINE multiplayer for Xbox 360 and PS3:
    DOOM: 2-4 players per map
    DOOM II: 2-4 players per map
    DOOM 3 and Resurrection of Evil: 2-4 players per map
    Lost Mission: N/A
OFFLINE multiplayer for Xbox 360 and PS3:
    DOOM: 2-4 players per map
    DOOM II: 2-4 players per map
    DOOM 3 and Resurrection of Evil: N/A
    Lost Mission: N/A
PC Multiplayer
    On PC online Multiplayer for DOOM 3 and Resurrection of Evil is 2-8 players.
    On PC there is no multiplayer options for Doom and Doom II.