Nikon japan tagged Nikon D3500 and Nikon D5600 as old models on their website. As per the latest reports coming from TechRadar Nikon said
“Nikon Imaging Japan has decided to archive some digital SLR camera models based on market trends. In Japan, the D5600 and D3500 are archived products. The products will continue to be sold in countries and regions other than Japan.”
Later on, they have also added
“We plan to continue selling these products for the time being. For areas other than Japan, we will consider the optimal timing for discontinuation based on the needs of the market and customers.”
The first is that the decision to archive both cameras in Japan is based on “market trends”. In other words, it’s highly unlikely that we’ll see replacement beginner DSLRs arrive to fill the gap left by the Nikon D3500 and Nikon D5600.
The supply chain of Nikon D3500 and Nikon D5600 cameras will remain to continue as per market demand in some specific countries. However, they have archived both the camera and it looks like further development is also halted. Now, as per rumors, we may see mirrorless replacements of both the camera soon, Nikon Z30 is in the announcement pipeline and we may see it in the next few months.