As far as I know they will build a branch of pipeline going from Nord Stream to Kaliningrad from where it could go directly to Poland too, perhaps.
Yes, with possibility of direct diversion to Świnoujście and Szczecin. But originally it was to go straight from Russia to Germany. So deal was likely made with Tusk (Putin's favorited Polish politician), to divert to Poland, under one condition...
How convenient that Tusk is now to run for President.
Pipeline was likely the reason for the falling out between Tusk and Kaczynski. Remember, Kaczynski was very pro-West:
"Polish premier's ill-fated trip shrouded in acrimony...
The ill-fated journey that wiped out Poland's governing elite on Saturday was prompted by an angry feud between President Lech Kaczynski and his Prime Minister over the country's tense relationship with Russia, it has emerged."
"Nord Stream Ensures Unrestricted Access to Polish Ports"
"Poles wary of Nord Stream pact"