'Black Lightning' Season 4 may bring the series closer to its fellow Arrowverse shows
When it started out 'Black Lightning' was situated in a different universe, which explained why it never crossed over with the other shows
Right from the very beginning, 'Black Lightning' has had a complicated relationship with its sister shows in The CW's Arrowverse. When it started out 'Black Lightning' was situated in a different universe, which explained why it never crossed over with the other shows, but despite 'Crisis on Infinite Earths' merging the multiple Earths into one, 'Black Lightning' Season 3 still maintained a distance from the other shows.
In a way, this did make Season 3's final arc a bit shaky. The entire business with Gravedigger (Wayne Brady) and the A.S.A could have been easily wrapped up if Black Lightning / Jefferson Pierce (Cress Williams) had called on his new Super Friends and quite a few of the fans found the fact that he didn't even consider it to be pretty disappointing.
However, Season 4 might just fix that issue by bringing the show closer to the rest of the Arrowverse with more overlaps if not full-blown crossovers. While Season 3's ending did set up a few plot threads for the next installment to cover, Season 4 has a relatively blank slate to work with so there's no reason why the writers shouldn't be able to at least include plot points or devices that connect the show to the rest of the greater world.
This would be a welcome change because right now, it does feel as if 'Black Lightning' is being intentionally isolated from the rest of the Arrowverse. And that's a shame because we saw some really nice interactions between the heroes during 'Crisis', especially between Jefferson and Barry Allen / The Flash (Grant Gustin).
Even if 'Black Lightning' is kept out of the next big crossover event, we would really love it if we could get to see Barry and Jefferson working together again. Perhaps then, Jefferson could ask the Flash why the fastest man alive was so slow to realize there was an international incident and a military occupation underway in Freeland this whole time.
The cast for 'Black Lightning' Season 4 will include Cress Williams, Christine Adams, China Anne McClain, Nafessa Williams, Chantal Thuy, Jordan Calloway, and James Remar. Series regular Damon Gupton will not be returning to the show after his character, Chief Bill Henderson, was killed off in the Season 3 finale.
'Black Lightning' Season 4 was expected to premiere in the fall but it might be delayed due to coronavirus (COVID-19) halting production of all shows.