We have no idea what plans Apple has for product releases..
Are you planning to use this with an iPhone 12?
I have a couple of suggestions that might work for you..
I've been using Anker products for years, they have great products and customer service is easy to work with.
(Apple also sells Anker products)
I noticed that they have their own version of the MagSafe charger and it has a 5 foot cable
https://www.anker.com/products/variant/powerwave-magnetic-pad/A25601Y1
Also you could consider using a charger with a cable rather than a wall charger. This would effectively extend the cable for you.
(I'm assuming your issue is lack of a nearby outlet)
https://www.anker.com/products/variant/powerport-atom-iii-slim-four-ports/A2045111
or
https://smile.amazon.com/gp/product/B07DFFX34P/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
you could also search Amazon (or wherever) for a USB C extension cable and make sure it has 1 male 1 female end.
I didn't really see any brands that I recognized, so I'd be hesitant to go that route myself.. but it's certainly an option.
The link below is an example of what I'm talking about.. I've heard of UGreen at least, but it's only 1.5 ft long
uGreen USB C extension