SQL Server Editions: Backup restore of Enterprise Edition 2014 on Standard Edition 2017
I believe it is possible to restore with same old answer that subject to condition you are not using any "enterprise specific" features. This you can get from

select * from sys.dm_db_persisted_sku_features.


If you are using any such feature you would have to stop using it, take fresh backup and then restore. I know its hard to tell because starting from SQL Server 2016 Sp1 standard provides far more features support. So at the last the answer would be you need to restore and test.

Good news is SQL Server 2017 RTM Evaluation Edition is released so you have the Eval edition for your testing.