The wrath is towards the end of the Great Tribulation that lasts approximately 3.5 years. (1278 days, 8 hours, 42 minutes would be close to exact - but the phrase "time, times and half a time" is not intended to mean precisely). We have several other scriptures mentioning the approximate time period of 42 months, 1260 days, 1290 days and 1335 days.
You identified when the the wrath comes in Rev. 11:15-19. It happens at the 7th Trumpet ( also referred to as the last trumpet). So the Mid-Trib/ Pre-Wrath view is correct.
"After the tribulation of those days", does not support Post-Trib and certainly not Pre-Trib views. It means after the days previously mentioned ( which are many, 1260). But notice it is not over yet.
At the 7th Trumpet, many events happen:
1. The kingdom of the world becomes the Kingdom of the Lord. He begins His reign as He takes control from Satan as defeats Him in battle.
2. Worship and Thanksgiving in heaven.
WRATH COMES (in the 7 Bowls released at that time)
3. Judgement of the dead
4. Rewards for servants are given ( a clear indication that we have just been raptured)
5. Dead in Christ are judged.
6. Temple in Heaven is opened
7. More devastation comes from the wrath that just begins.
So Jesus returns towards the end of the GT, but not after and not before. There are events between 1260 days and 1290 days and beyond up to 1335 days, after which the Millennial Kingdom begins.
Blessed are those who patiently make it through the 1,335 days. DAN. 12:12