Battlefield 2042 Reveal Causes Battlefield 4 Spike

A post from an Electronic Arts community manager explains that player counts have been increased for Battlefield 4 servers. This is because of how many players have jumped back into BF4 following the announcement of Battlefield 2042 (thanks Eurogamer). Here's word:
We were absolutely blown away by your excitement and reactions to the recent Battlefield 2042 reveal.

Since then, many of you have jumped back into Battlefield 4 to already get a taste of the return to all-out-warfare. We’ve been monitoring your experience and noticed queue times in the US West region were far longer than in other regions. Good news, we’ve increased server capacity for this region – you can expect less waiting, and more playing.