If you've got the schematic and a picture of the PCB, then re-creating it in KiCad (or another EDA program) is a lot less work then designing a schematic and PCB layout. It's just data entry. An typical Elektor project on a dual sided PCB is probably between half a day and a day's work.
KiCad can back-import a set of Gerber files into a PCB project. If you have Gerbers this is a significant time saver compared to re-creating it all by hand.
One of the additions I'd like to have for KiCad is better support for reverse-engineering. Just having a picture as a background would be a significant bonus. In the coming (I sincerely hope this year) new KiCad V6 it's also possible to create a netlist in PCBnew. The next step to make a reverse-engineer workflow complete would be to back-import the netlist into the schematic editor and then have a "ratsnest" displayed to reconstruct the schematic from the extracted netlist from the PCB. But such is not high on KiCad's priority list.
You can also import .DXF graphics in KiCad. It's mostly meant for PCB outlines from CAD programs, but if you can convert an image to .DXF format you can at least use it as a template to draw copper tracks over them.
Elektor has always tried to make it difficult to reproduce their projects. Z80 projects for example often had a PLD on them for no apparent reason than to make reproducing more difficult. With a bit of remapping of adresses, a 74HC138 or similar would have been perfectly suitable to switch between some memory chips.
It's part of the reason why I stopped my subscription.
I had a subscription on the electronic edition of Circuitcellar for a while. All their projects came with downloadable zip archives.
When Elector invaded Circuitcellar their magazine more then doubled in price and I also gave up that subscription. A few years later they kicked out Elektor, but the high prices stayed.
In the last 15 years or so Elector seems to have opened up a bit. They seem to publish more Open Source projects and there are quite a lot of projects on the "Elektor Lab" part of their website.
If you're looking for vintage projects, then the older CircuitCellars may be more interesting then the Elektors.
With a bit of lookin' you can also find lots of old edtions of "Electronics Now" "epe" (Everyday Practical Electronics) "Nuts and Volts".
If you like small linux devices, then have a look at the Hardkernel website. They have years of a freely downloadable magazine in PDF format with a gazillion of projects for their (quite affordable) hardware.
Addition:
KiCad can