Priests should avoid preaching substantially out of material not approved by the Church. Balance is also necessary. Sober teaching on sin with hope rooted in grace in mercy is the basic meat and potatoes of the preaching task. Encourage Father with what he preaches well, but also request he focus his material on what is approved and less divisive.

There is no papal endorsement. Church policy on Catholics who are divorced and remarried remains unchanged. As a general rule, divorced and remarried Catholics are not able to receive communion or absolution in confession. This is because they are living in an invalid marriage, where at least one of them has been married to someone else before. 
 
In accord with what Jesus teaches in Matthew 19, Matthew 5, Mark 10, and other places, those who divorce and then remarry are in a state of adultery. And, since their marriage is ongoing, and regular conjugal relations are presumed, Catholics in this state are not usually able to make a firm act of contrition which includes the promise to avoid adulterous sex in the future. Hence, they cannot receive absolution, neither can they be offered Holy Communion. 
 
In relatively rare situations, some Catholics are able to live with their current spouse and a kind of “brother‐sister” relationship where no sexual relations are part of the picture. Sometimes this is due to mutual agreement between the spouses, and sometimes it is due to health-related issues that preclude sexual activity and will not change in the future. In such rare cases, a Catholic is able to make an act of contrition, receive absolution and be restored to Holy Communion. 
 
Regarding the German Bishops, it has been reported that some are either acting contrary to current Church law, or strongly requesting a change in the law. 
 
Of itself, request to review current church policies is a legitimate matter to consider in any number of areas. As most priests know, many people today find themselves in very complicated situations. Many for example, have returned to the Church after many years away, and often do so with the irregular marriage situations. Some can be quickly and easily rectified. Others, because current or former spouses are uncooperative, create difficulties in people being restored to the full sacramental life of the Church. 
 
Are there ways that we can more efficiently deal with these situations, and at the same time respect the Lord's clear teaching in Scripture? These are ongoing questions. 
 
It is unlikely that there can be any major changes in Church policy in this regard. However, there can be great improvements in explaining our pastoral stance to Catholics who are often confused by what the Church teaches and why. The prayers of the faithful will be very important so the decisions that come forth are wise, prudent, and engender in that respect for Church teaching on marriage.