No there isnât.
It keeps your old progress, even if you remove the course from the dashboard, but your progress canât be transferred to the new course.
You have to re-start from scratch.
Memrise works like DuoLingo:
Every L1-L2 course is itâs own unique course with itâs own source and target translations (if you want to call it: 3rd (auto) screen language).
The course authors have NOT added multiple source L1 columns for each possible language.
You can check the âLearn for ⌠Polyglotâ series from EasyAcademy which contains multiple L1 source translations for more than one language.
If you do not want to go through the 6 steps of planting, you can use Cooljingleâs user script âAuto-learnâ for those single words, which you do not want to completely ignore.
However, the script does not support that level-/course wise.
The Memrise web portal auto_grow / auto_learn old (own) features are long gone for normal course users / learners.
To use Memriseâs own auto_learn (for levels / full course) you need to be your own course creatorâŚor course contributor.
You could probably save your progress by using the the Memrise2Anki importer addon.
But you will be missing the new L1 English source language as note.
How many words have you learned? 2000? 5000?
I do not expect that there in an option in Anki to find L2 targets and merge two courses (decks) and multiple L1 source notes automatically for Dutch-German and English-German.
Anki is complex, can do fancy stuff, but I just stepped into reading the manual and forums the last 2-3 days.
You can try it out how L1-L2 notes to card mapping works in Anki for yourself and ask about the merging idea on the forum: http://anki.tenderapp.com/
Because of a SSL certificate verify error I was not successfully able to start the Memrise2Anki import for myself on my system.
Again: if you have not already finished learning
~3000-5000 words, all the investiment is not IMHO worth it.
I would NOT do it for the smaller offical Memrise 1-7 courses!