To predict the future dates, you can upload a dataset that has the dates of interest (specify dates in the future) and provide anything additional that may be known (group ids or features known in the future). Then run/score your predictions on this new dataset.
Here is an example dataset to upload for a model that was trained up to 2020-05-31.
+------------+----------+-----------------+-----------------+
| Date | Group_ID | Known_Feature_1 | Known_Feature_2 |
+------------+----------+-----------------+-----------------+
| 2020-06-01 | A | 3 | 1|
| 2020-06-02 | A | 2 | 2|
| 2020-06-03 | A | 4 | 1|
| 2020-06-01 | B | 3 | 0|
| 2020-06-02 | B | 2 | 1|
| 2020-06-03 | B | 4 | 0|
+------------+----------+-----------------+-----------------+