According to an article on ch.aviaton ASKY Airlines intend on using a B737 MAX from their hub in Lome, Togo to London and Johannesburg, the article is behind a paywall.
I had mentioned on this forum before that ASKY were looking into flying to London in a previous post from last year as I had read an article online that was in French that suggested this.
Although it states London in the article I should imagine that it will be Gatwick that gets this new West African connection and with ASKY Airlines comprehensive network it will open up many destinations on the African continent and in particular west and central Africa.