There are two key aspects of the debate about the identity challenge among futurists. One is the categorization among related "scientific" or academic disciplines and another about a nice job title that you could use in your CV or business card.
On the first issue I am sure that the most general term could be Futures Studies because after all we have the World "Futures Studies" Federation.
Such studies have not appeared from nowhere and there are traditional and better known fields that might serve sometimes as a replacement if your audience is not comfortable with the term futures studies and the similar.
Among those more traditional you can for example name intelligence or strategic intelligence which have some significant overlap with futures studies. In particular, you can observe the rising demand for Business Intelligence (BI) or Technology Intelligence (TI) Professions. Some ideas have been explored here in a chapter of the Handbook of Anticipation.
Another more academically inclined tradition is that of anthropology which after a transformation to forward looking attitude can be called "anticipatory anthropology" that could well convey the key message of the Long Term, Big Picture and Radical Change.
I personally would prefer anticipatory anthropology to futurology because "ology" implies that someone is knowledgeable and is an expert in a collection of facts on a specific topic as in cosmology, geology, psychology, sociology, etc. And facts about the future are hard to establish if not impossible at all.
But on the second issue of a recognized job title the issue is not academic or professional recognition among peers but how governments treat you in their statistical databases. For instance, US Bureau of Statistics, and I would dare to say other countries too, do not have an entry for a Futurist. As a matter of fact you will not be counted in the statistics. Although there are discussions about such a job title under You Are a What?
My recommendation is that you could use some simple titles like analyst, researcher, consultant, designer, author, speaker, expert, etc with additional qualifiers to indicate your focus on the futures, policy, innovation, technology, big picture, etc and paying attention to linguistic and cultural connotations in your specific environment/context.
Another approach might be to look at the profile of people in social media and see which descriptions might serve your purpose, for example, thought leader, idea generator, trend spotter, creativity facilitator, visionary thinker, digital transformation guru etc.