Portal 3

Hello all.
Over these past few years, i have been missing something close to me... and that is portal 3.
Although Valve steam-roll the gaming market with Steam, many other people still wonder on the whereabouts of their future games. Millions played Portal 1 and 2, so i'm sure they could make another with the amount of money they have, which would also boost their profit by a tiny bit as Portal 3 would make a lot of money. Advertising, trailers and
pre-orders would make the fan-base extremely excited for the game, so it is worth a shot.
Please... Help everyone out.