It seems weird to me because I would think given how close Wimbledon is on the heels of RG that Patrick and Serena would be working to get her back to competition levels of competing. This would be the time they should be working on strategy and putting together her return. Is he going to work with Halep for like a month or two and then go back to Serena to help her get ready for Wimbledon if that is her true intent on a return? The logistics of it make no sense if he is still her coach. It sounds like an easy way to announce a split that respects both parties.
I take your point that Patrick and Serena should be working together before Wimbledon starts,seeing the grass season does start on the heels of Roland Garos.Apparently from what we read is that Serena gave Patrick the okay to coach Halep for the clay season.,as Patrick cited he missed full time coaching.
I must admit I was taken back when I read he was going to coach Halep,though Halep had already been at Patrick's academy on the advice of Darren Cahill.after their split.
I feel Serena has to get matches and I thought she would return for the clay season,playing Rome and Roland Garos.
Serena at present seems intent on returning for the grass season,Wimbledon.
I think at this stage of her career Serena understands the physical training needed to get back to competition.
It will be a interesting few months to see what evolves between Halep and Patrick.I personally feel if Serena and Patrick were to split they would announced it now,just my thoughts.