Question

there is going to be和there is going have的区别

Answer 1

there is going to be意思是“将要有”，没有there is going have 这种说法。There be 结构不能和have/has(当有讲时）连用。

Answer 2

前者表示（某地/ 某时）将有....
后者这表达法是没有的。