Best solution is. Add more expensive tradable items.
Can be added season 8 sets and weapons. This time half million credits per set at the webshop would make the set tradeable, searchable and more interesting for the market? Very rare to drop from monsters (only illusion kundun and erohim with 1% percents of drop for a f.o. item or semi f.o. item)Otherwise this suggestions will be given after a year just like now we talk about the S4 items. In first place I heard that S4 items were too expensive, but that ain't true, right? They are even cheap or lets say normal prices and new currency markets.
if your business minded person you can sell your items for High price just to reroll ur items..its like buy and selling stuff..
but if your rich you can sell it for cheap just to gain new items...so its only depends on players.. Cycle for short...just observe bro the market price...
what i likely to suggest is we move update to season 4-6 ..