[af_vet_1981]

So the question is if there are traditional Lutheran groups who endorse Luther’s ‘On the Jews and Their Lies’?

No; that is not the question. The poster Buckeye McFrog wrote "Yup. The Lutheran Church has formally apologized to the Jews for this text." The assertion implies there is such an entity. There is no assertion of groups.

The question would then be is there such an entity, and is there evidence the assertion is true ? If the ELCA is that entity, then the other groups are not, and the assertion is true as evidenced by the linked document.

[jjotto]

Not to put too fine a point on it, but anti-Judaism is the beating heart of all traditional Christianity.

The ELCA’s statement was in conjunction with the Lutheran World Federation. Just as the LWF does not represent every Lutheran group, there is also no all-encompassing Jewish group that could accept the hypothetical universal apology.

Most secular Jews seems to appreciate the effort.

http://www.jta.org/1994/05/06/archive/lutheran-church-formally-rejects-luthers-anti-semitic-teachings