By now you've probably seen our New York Toy Fair 2020 coverage, and you might have noticed that the up-coming Black Series 6" Luke Skywalker (Snowspeeder) figure will include a removable helmet and a lightaber. The harpoon however which Luke Skywalker used to shoot himself up to the belly of the AT-AT will not be included with the figure.
Hasbro however will include the harpoon with the up-coming Black Series Snowspeeder vehicle where the harpoon can be stored inside the cockpit. For all the press photos of the Black Series Snowspeeder have a look here, and to place your pre-order have a look here (sponsored: Amazon/Entertainment Earth).
Here are two images which were taken on the Hasbro New York Toy Fair 2020 show floor.
And here is a screen grab from Hasbro's Unboxing video on Hasbro Pulse, where Eric from Hasbro takes the harpoon out of the cockpit.