Well, let's hope they are better at keeping up with PHP versions with 7 than they were with 6. Using Drupal 6 with PHP 5.3.2 was worse than any beta I have ever participated in. Core features failed, plugins would not run, things just did not work. Still it was the most promising environment we have encountered for integrating Lucene, Solr, and Alchemy for an advanced NLP research workstation. If 7 is well behaved enough then we may even attempt a GATE integration.