You guys keep calling retcons on stuff, but what has actually ever been retconned in One Piece?
1. Luffy's fruit
- It's not a retcon if the story itself involves hiding what it was.
2. Haki in Post TS
- The earlier characters didn't show black armament Haki because the ones shown didn't need to. However, there were already hints of advanced Haki to be explained later with characters like Ben Beckman who threatened Kizaru.
- Ben Beckman couldn't hurt Kizaru if his gun was using plain bullets, so it is implied he would've done something to them to make them effective. This implies he would've introduced advanced armament in pre TS if he had actually shot him.
- It's not totally necessary for Shanks to display armament Haki just because he blocked Akainu. At this point in the story, it was just an implied thing. Haki, in general, is invisible too.
3. Sanji being a genetically engineered human
- This wasn't a retcon either, it was just new information to the readers which Sanji didn't care to discuss until recently because he didn't like his past. He did explain he was born in the North Blue a long time ago (multiple times).
Everything has an explanation, so, no, you shouldn't expect Loki and Lola to be retconned. It will have some kind of explanation eventually and possibly play a role in the future just like everything else did.