I agree with @AnnaLandin, only do this if it's something you feel excited to do! As someone who is about to come off a two-year hiatus, I can tell you (a) you will not lose all your readers by going on a cold-turkey hiatus, and (b) there's some mental good that comes from stepping away entirely and teaching your own brain that you won't fade away the second you stop producing. I think the internet makes it easy to feel that way.
The other thing is that I've seen other comic artists do this - make extras to keep readers engaged when there aren't gonna be updates for a while -- and unless you're having a lot of fun with those extras, they can become really draining. When it still takes effort, but your motivation isn't "I'm excited to draw this" but "I feel obligated to give readers something," and you get half the engagement you normally would for a comic page just because it's not the main story..... that has a lot of factors that can make it feel like a huge sapping of your motivation.
If you're making the extras because "HECK now I have opportunity to do some fun extra things I want to do, why not take advantage of it???" or "man I'm already makin' all these drawings, I kinda want to share them with my readers in the interim!" Then I say do it! But if you're kinda making them out of a desire to keep treading water out of fear of drowning if you stop making content, then it might be a good idea to go ahead and take this break for a bit. ;u;
