になりそうです

looks like it will become; seems likely to turn into

→ に
phrase Rare #28,413
looks like it will become; seems likely to turn into Follows a noun or な-adjective stem to express that something seems likely to become or be a certain way. The です ending makes it polite.
JA: 今日は長い一日になりそうです。
EN: It looks like today is going to be a long day.

もうすぐ春になりそうです。

It looks like spring is just around the corner.

雪になりそうですね。

It looks like it’s going to snow.

今日は長い一日になりそうです。

Today looks like it’s going to be a long day.

嵐になりそうです。

It looks like a storm is brewing.

一日いい天気になりそうですよ。

It looks like it’s going to be nice all day.

トムの言うとおり面白い対戦になりそうです

Tom’s right—it looks like it’s going to be an exciting match.

— ダンガル きっと、つよくなる (2016)

どうも雨になりそうです。

It looks like it’s going to rain.