Update: 23:50 Remember that promo is on tonight. You can watch it with us here
We will of course post it here once it is online.
Thanks to Zedman2 for the heads up.
This just in, the first Lost final season promo (0:15) is tentatively scheduled to premiere during the end of FLASHFORWARD (with Lost's Dominic Monaghan joining the cast) this Thursday (Oct. 29 -- first night of November sweeps). Promos for V (starring Lost's Elizabeth Mitchell) will heavily be featured in this hour as well.
Source: SitComs Online