It is definitely possible.
You might want to create custom templates then style it to want you want from there.
copy the loop-single-topic.php file into your child theme in a folder called bbpress. THen add the topic excerpt using bbp_topic_excerpt() and also place the post count into an icon font.
You can add topic thumbnails with a plugin I think, or just manually put that before every topic.
You can also change the heading to comments by copying/editing I think loop-topics.php into your child theme in a folder called bbpress also.