It seems they will come back, but when and where is still unknown. From local news site [AT5][1] (December 3rd):

> Ze worden opgeknapt en daarna zullen ze rondreizen door de stad. Welke plekken ze zullen aandoen, is nog niet bekend.

DeepL Translate:

> They will be restored and then they will travel around the city. The places they will visit are not yet known.


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The [Parool][2] newspaper reports other places where you can still visit similar letters (there are 5 sets in total): Presumably you can still see them at [Schiphol Airport][3], at the [Hoekenrodeplein][4] (haven't found this one yet) and near the [Sloterplas][5].


  [1]: https://www.at5.nl/artikelen/189153/i-amsterdam-letters-verwijderd-na-opknapbeurt-elders-in-stad-terug
  [2]: https://www.parool.nl/amsterdam/i-amsterdam-letters-mogen-blijven-bij-sloterplas-en-in-zuidoost~a4606276/
  [3]: https://goo.gl/maps/q3n1STqd2sy
  [4]: https://www.google.com/maps/place/Hoekenrodeplein,+1102+BR+Amsterdam
  [5]: https://goo.gl/maps/nnuUxvjBNCH2