The problem is that you've written a sentence form that appears in many introductions of technical manuscripts with a different meaning: "There has a sparsity/paucity of research in this area[, motivating me to work on it]."

It's a given that more research can be performed; it's not necessary to inform the reader of this. It sounds like you mean something like the following:

The study of A has emerged as a distinct field that now merits a review.

There is now sufficient research on this active topic to review it.

This burgeoning field is now broad enough to usefully review.

An appreciable/considerable/notable amount of work has recently been published in this developing area, prompting this review.

Does this match the intended meaning?

The problem is that you've written a sentence form that appears in many introductions of technical manuscripts with a different meaning: "There was a sparsity/paucity of research in this area[, motivating me to work on it]."

It's a given that more research can be performed; it's not necessary to inform the reader of this. It sounds like you mean something like the following:

The study of A has emerged as a distinct field that now merits a review.

There is now sufficient research on this active topic to review it.

This burgeoning field is now broad enough to usefully review.

An appreciable/considerable/notable amount of work has recently been published in this developing area, prompting this review.

Does this match the intended meaning?

The problem is that you've written a sentence form that appears in many introductions of technical manuscripts with a different meaning: "There has a sparsity/paucity of research in this area[, motivating me to work on it]."

It's a given that more research can be performed; it's not necessary to inform the reader of this. It sounds like you mean something like the following:

The study of A has emerged as a distinct field that now merits a review.

There is now sufficient research on this active topic to review it.

This burgeoning field is now broad enough to usefully review.

Notable work has recently been published in this developing area, prompting this review.

Does this match the intended meaning?

The problem is that you've written a sentence form that appears in many introductions of technical manuscripts with a different meaning: "There has a sparsity/paucity of research in this area[, motivating me to work on it]."

It's a given that more research can be performed; it's not necessary to inform the reader of this. It sounds like you mean something like the following:

The study of A has emerged as a distinct field that now merits a review.

There is now sufficient research on this active topic to review it.

This burgeoning field is now broad enough to usefully review.

An appreciable/considerable/notable amount of work has recently been published in this developing area, prompting this review.

Does this match the intended meaning?