Douglas also voiced the Grim Reaper in Umbrella Corps, by the way… Of course, when he spoke on behalf of the legendary executive, he played the intonation of Albert Wesker, but still.
The entire Blue Umbrella storyline began in Resident Evil 4. This game established that Wesker was the leader of a rival company's faction when he and some members of the organization wanted to resurrect Umbrella in order to rule the world with its dangerous technologies.
The resurrection of Umbrella is also the root cause of the era of bioterrorism, as Wesker helped various corporations and syndicates become part of this new industry to shift the balance of power in the world. Presumably, with connections all over the planet, his Umbrella was supposed to maintain a global balance. This is a supranational form of power.
This is what Umbrella Corps vividly illustrates. Moreover, the organization's principle of operation is based on the constant rivalry of employees, and this is exactly the experience that Wesker received during his training at Marcus' school, since he was Birkin's rival because of Marcus.
Of course, I don't want to say that Wesker is definitely alive. At this point, it seems to me that the developers were hinting at Wesker, since his image is strictly associated with the storylines of a rival company and the resurrection of Umbrella. At the time of 2006, Wesker had completely taken over the rival company and achieved honor and status there. However, after meeting Spencer, he lost interest in Umbrella and the rival company, so these storylines were abandoned. The choice of 2007 as the year of Umbrella's reorganization does not seem accidental, since Wesker was alive then, so he could implement his old plan.
I think that Infinite Darkness could also help fill this gap, since its events take place in 2006.
Hell, even Village can develop this storyline, as the Umbrella symbol of the four families, Wesker's Umbrella symbol from Resident Evil 4 and Wesker's Umbrella symbols from Umbrella Corps and Resident Evil 7 have their diagonal sides painted over. This can easily be interpreted as a symbol of Umbrella's doppelgänger, since Spencer could once betray the aristocrats who were also trying to find the elixir of immortality, so they founded a rival company and stole a virus from Umbrella to create a fungus that secretes a telomerase-like enzyme.
Speaking of the legendary executive, he may well be an impostor who was made a new Albert by Wesker's adepts, repeating the experiment with Carla.
In other words, I will never give up on the series.