Picking up from a previous exchange, the Lord doing new things is a theme that arises in Isaiah. I think the references mentioned earlier were to Isaiah 48 and 65 but I believe there are others. My sense is that these passages describe events fulfilled in the return from exile, the new covenant, and the end times. I don't think they can justifiably be cited as promises of new doctrines that contradict revealed doctrine in Scripture.
A few years ago the UCC promoted something called God is Still Speaking. It was a false flag designed to get people to accept the changes they wanted to make in doctrine. They too misused the Word of God for their own ends. I don't know if they fooled anyone.
Yes, I assume this is where we were going to end up in the now deleted conversation if it had been allowed to continue. More gnosticism by those claiming they can identify these new things. I don't think they can claim the mantle of a contemporary prophet speaking authoritatively for God now.
In the context of things like the original Isaiah prophecy, the best way to understand the "new things" is the coming of Jesus, as recorded in the NT, AKA the Word of God. Not everything one can imagine that has happened after the ascension. Of course that doesn't mean that God pleasing new things don't continue to occur. They're not just what is specifically being referenced by the Isaiah prophecy.
PS: the OT records many bad historical occurrences (lying, adultery, murder, fraud, war etc) that are written down in the "Word of God", but it does not make them positively instructive for us today. Carelessly lumping such things in as the "Word of God" is bad faith argumentation for any one so inclined. Likewise deuteronic law given to the Hebrews but not applicable to Christians because we're not Jews. I'm planning on enjoying shellfish on Christmas Eve.