Lost in Space is an American science fiction television series based on a reimagining of the 1965 series of the same name (itself a reimagining of the 1812 novel The Swiss Family Robinson), following the adventures of a family of space colonists whose spaceship veers off course.
The first season saw the Robinsons successfully imprison June Harris — a psychopath and criminal who had assumed the identify of Dr. Smith in order to abort the humans’ mission — but ended up with their ship being sent by aliens into a different, unknown galaxy, which Will recognizes from a shape the Robot once drew for him, with the warning: “Danger, Will Robinson”.
Lost In Space Season 1 created a lot of suspense and engagement in public in its initial release and gained a huge fanbase, among people, the way of portraying the character and the storyline of the show is the main reason behind this that it created a lot of engagement and wait for Season 2.
A Tweet by Mina Sundwall in which she has clearly confirmed doing some post-production stuff for the show. She had even posted a video of her in a recording studio with some scenes playing on a screen behind.
So it clearly is a sign that the post-production is still in progress due to which the makers have not talked much about its premiere. Do not hold any hope for the trailer. It is not likely to come out soon.
Lost in Space season 2 is likely to release in the last quarter of 2019.