The personal nature of some of the attacks, coupled with uncertainty over the club's ownership, has led to speculation that Bruce might not be around by the start of the new season.
The 29 May showpiece was moved from Istanbul to the 50,000-capacity Estádio do Dragão due to England imposing tougher pandemic travel restrictions on Turkey that would have prevented fans flying in.
UEFA is hoping for more than 10,000 people to be at the Porto stadium after having to move the final from Istanbul to Portugal for a second successive year.
Premier League: Manchester City ride on ever-vigilant Ruben Dias as Pep Guardiola's men clinch title once again
Dias became a monument to Manchester City's imperious championship. Not unlike the aura Van Dijk holds at Liverpool, he too has become the symbolic sentinel. Excluding calm confidence, gliding on green grass, a two steps ahead of every move.
City have claimed the trophy with three games to spare, capping a remarkable surge to the silverware in the second half of the season.
Fernandinho says Manchester City will 'do everything' to win Champions League after clinching league title
Pep Guardiola's men have wrapped up the Premier League with three games to spare after also winning the League Cup in April.
Several hundred City supporters descended on the Etihad to start their title party following the result across Manchester at Old Trafford.
Pep Guardiola's side are 10 points clear of second placed United and have wrapped up the title with three games to spare.
The chair of an advisory panel comprising elected representatives from the fanbase will be appointed annually on the club's board, Tottenham said on Tuesday.
European football matchday: Manchester United look to keep City waiting for title, Barcelona visit Levante
A defeat for second-placed United, who are 10 points behind City with four games remaining, would hand their neighbours the title.
Premier League: Manchester United delay City's title celebrations by beating Aston Villa; West Brom relegated
Defeat meant Baggies boss Sam Allardyce had suffered the first Premier League relegation of his managerial career.
The Spanish league has a decisive match when third-placed Barcelona host leader Atlético Madrid at the Camp Nou Stadium.
The English FA were in talks with European football's governing body UEFA already, he said, but added the choice of venue for the final was a decision for UEFA.
Premier League: Pep Guardiola says Champions League final not on his mind as Manchester City host Chelsea
The two sides will meet again in European club football's showpiece in Istanbul on 29 May.
Premier League: Manchester City look to seal title as they play Chelsea in Champions League final precursor
A key to both clubs' success has been their strength in depth and both managers could make several changes this weekend after the exertions of seeing off Paris Saint-Germain and Real Madrid in midweek.
Champions League: Evolution of N'Golo Kante, how PSG lost the plot and other talking points from semis 2nd legs
We take a look at the talking points from this week's semi-final second-leg fixtures of the 2021 edition of the Champions League
Thomas Tuchel's side will face Premier League rivals Manchester City in the final in Istanbul on 29 May.
Up to 4,000 fans from both Chelsea and City could be allowed into the 76,000-seat Atatürk Olympic Stadium, which was originally due to host last season's final.
Champions League: Werner and Mount score as Chelsea outclass Real Madrid to set up all-English final
Chelsea should have ran out far more convincing winners as they toyed with the tired Real Madrid in the second half.