If you want to avoid going on a merry go round of speakers, here's my suggestion:
Keep your speakers
Get an amp that has really good current drive.
Look at your room acoustics as the next big place to spend money.
Dynaudio has made a number of different ranges of speakers. I know this seems obvious but what I mean is that they are tuned quite differently from each other. Using a neutral, U or W shape. You really need to listen to them and either fall completely in love with them, or leave them alone. I would not immediately think of them as an upgrade, but a lateral change.
The Focal 1038 is more demanding of an amp than the 1028, and the 1028 is demanding. You'll get more bass by better room acoustics and be happier with the results.