And just who is it that you think is coming back to this earth?
Indeed, it is clear Who is Coming back in Revelation chapter 1 and that is “the Alpha and Omega” which is the Same in Isaiah 44, and there it is clearly YHWH, and in Revelation 1 it is clearly Jesus Christ, therefore YHWH is the God of Israel, and therefore Jesus Christ is YHWH.
On this question, as on all others, I go by what the New Testament actually says about it.