That looks just like ㄹ 터이다 to me
reminds me of ㄹ 텐데, ㄹ 테니까 ... try look it up in grammar text
I think that expresses along the line of intention, expectation, supposition
BTW, 터 is one of those 의존명사's like 셈,것,듯,바,지,데. by itself as a noun it is hard to pinpoint its meaning but pairing with another qualifier it often forms certain set expression. It is just one of those patterns you need to learn by heart.