Replacing s1 with s2 heroes will be an interesting solution and will make something new (a portal without s1 heroes outcome, and as worst outcome a s2 hero which is not so bad).
However I highly doubt it will happen. I will continue to:
- collect coins and save them WITHOUT using them
- do not spend gems here for any reason (usually I use gems only in s2 or s3 portal… surely not here)
- do not buy any offer for this event for any reason (usually I do not buy event offers as a general rule, but in this case it is total no worth on spending a single cent for absolute nothing, seeing that - except of the very low chance of getting an HOTM - there is any other (even little) valuable outcome compared to other special portals.
The best way to increase our chance of being heard about tavern portal is not buy any offer related to this event. If NO ONE player buys ANY offer during this event and do not spend any gem in this event, than SG will discover that there is not earning money for this event and should do something to making it appealing.
Until a single player continue to spend in an event like this one where it is so clear that there is not a single desiderable outcome possible, we are out of hope.