Could one use: 1-Unlike his other projects, I hope that he will finish his new script.
instead of: 1a- I hope that unlike his other projects, he will finish his new script.
Could one use: 1-Unlike his other projects, I hope that he will finish his new script.
instead of: 1a- I hope that unlike his other projects, he will finish his new script.
I would go with 1a. #1 would suggest that you didn't hope that etc.