I've been waiting a long time for this. The good news is that in the forthcoming UBS6/NA29 editions of the Greek New Testament, Hebrews will be placed after 1-2 Thessalonians and before the Pastorals instead of after Philemon. This is clearly where it belongs, as you can see from the following.
Even the Robinson-Pierpont text places Hebrews before the Pastorals.
Those who teach courses in the Gospels, Acts-Pauline Epistles, and Hebrews-Revelation may need to rethink this division. Hebrews always circulated among the Pauline Corpus!