"ever newer" is correct and usable in written English.
You can use it to emphasize that something is constantly being renewed or improved. For example: Technology is always advancing, and we are able to create ever newer and more advanced gadgets.
With collectors in a buying frenzy and the search for ever newer artists intensifying, Indian contemporary art is the latest craze in the international art market.
Let the Oxford professorship's authority be revived as a platform for authentic poetry ticket-bookings, scheduling ever newer departures and in-depth arrivals way beyond mere careerist arrivism.
Will our desire for ever newer and higher-quality services mean that we continually find ways to make use of the extra computational power that digital innovation delivers?
The headstone is smashed and pulverized, he said, and trucked away as rubble to be used in landfill or on building sites as the construction of an ever newer Singapore continues.
"Now we are working with artificial intelligence software" on projects like a residential community that is part of a master plan for Istanbul, and product and furniture design that deploys ever newer composites and resins.
The professors and the trustees have discussed trying to build a coalition that would remake collegiate athletics over the next decade, by raising academic and eligibility standards for athletes, by curtailing athletic excesses that have often led to scandal and by curbing the rampant race to build ever newer, more lavish athletic facilities.
At each moment, he is beset with questions – questions that strike him as ever new and ever urgent.
Ours is a strength that is centuries old, but ever new.
A new generation of politicians scrutinises the military budget more closely, forcing the army into ever new sleights of hand to keep generous pensions and vacation allowances.
But now, more than ever, New Money in America is tricking itself up in Old Money's garb.
And wherever you go, you carry a message of hope, a message that is ancient, and ever new.
